
🎯 Games that teach how to love math (iOS/Android/Web): Euclidea, Pythagorea, XSection, and Tchisla apps
🎯 New puzzle every week 👉@euclidea_app👈
@euclidea_app
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📐"Weekly Puzzle"📐
#euclidea_puzzle_31
The task is:
🎓 Prove that the red segments connecting the vertices of the squares are #congruent.
What you need:
✅ Carefully read the statement of the problem and look at the picture closely
✅ Leave your answer in the comments below! 👇
Like and share with your friends ❤️ One winner will be selected early next week. A reward for the puzzle is one promo code to unlock levels in the Euclidea app. ❗ Prizes for the correct answers are awarded in Instagram only. We are waiting for your solutions: https://www.instagram.com/euclidea_app/
#geometry #math #maths #mathgames #mtbos #edtech #iteachmath #mathematics #proof #logic #puzzle #problem #solution #drawing #brainteaser #mathteacher #technology #software #education #steam #teachersofinstagram #teacher #dynamicgeometry #calculus ##square
🗺🏝🏴☠️🧭 "Weekly Puzzle"
#euclidea_puzzle_30
The task is:
🎓 Searching for a buried #treasure, the Pirate walked 1 mile South, turned East and walked another 1 mile, turned 30 ° North and walked another 1 mile. At what angle does the Pirate need to turn now to return straight to the starting point?
What you need:
✅ Carefully read the statement of the problem and look at the picture closely
✅ Leave your answer in the comments below! 👇
✅ Write a proof why your answer is correct (optional)
Like and share with your friends ❤️❤️❤️ One winner will be selected early next week. A reward for the puzzle is one promo code to unlock levels in the Euclidea app. ❗ Prizes for the correct answers are awarded in Instagram only. We are waiting for your solutions: https://www.instagram.com/euclidea_app/
#Euclidea #Pythagorea #geometry #math #mathgames #moremath #mtbos #edtech #iteachmath #mathematics #proof #mathchat #logic #puzzle #problem #solution #drawing #brainteaser #piratesofthecaribbean #pirate #quiz #quadrangle #braingames
📸 A small photo report from the Mathematical Festival, which took place on February 9 at the Economic Faculty of Lomonosov Moscow State University in Moscow. Our station 'Pythagorea game' was very popular. Three tables were not enough and children enthusiastically solved problems standing all around and even on the floor. Their parents and organizers were also curious and then could not stop solving our #puzzles. Thanks for the great festival!🙏 #math #mathgame #mathfestival #Pythagorea #Euclidea #conference #mathematics #geometry
"Weekly Puzzle"
The task is:
🎓 Construct both tangents to the circle from the point A, using FIVE lines only.
What you need:
✅ Carefully read the statement of the problem and look at the picture closely
✅ Solve the problem in the #Pythagorea app (level 25.17) or on squared paper
✅ Post a screenshot of your solution. Your account should be public so that we can see your post.
✅ Add hashtags #euclidea and #euclidea_puzzle_29
✅ Mention @euclidea_app on the screenshot
✅ Write a proof why your answer is correct (optional)
☑ You can also send us a message with solution in Direct, but publishing a post is better
Like and share with your friends ❤️❤️❤️ One winner will be selected early next week. A reward for the puzzle is one promo code to unlock levels in the Euclidea app. ❗ Prizes for the correct answers are awarded in Instagram only. We are waiting for your solutions: https://www.instagram.com/euclidea_app/
#geometry #tangent #math #mathgames #moremath #mtbos #edtech #iteachmath #iteachgeometry #mathematics #proof #mathchat #logic #puzzle #problem #solution #drawing #brainteaser #school #quiz
"Weekly Puzzle"
The task is:
🎓 Construct the third segment with the ends at grid nodes, passing through the intersection point of two given segments.
What you need:
✅ Carefully read the statement of the problem and look at the picture closely
✅ Solve the problem in the #Pythagorea app (like level 1.1) or on squared paper
✅ Post a screenshot of your solution. Your account should be public so that we can see your post.
✅ Add hashtags #euclidea and #euclidea_puzzle_28
✅ Mention @euclidea_app on the screenshot
✅ Write a proof why your answer is correct (optional)
☑ You can also send us a message with solution in Direct, but publishing a post is better
Like and share with your friends ❤️❤️❤️ One winner will be selected early next week. A reward for the puzzle is one promo code to unlock levels in the Euclidea app. ❗ Prizes for the correct answers are awarded in Instagram only. We are waiting for your solutions: https://www.instagram.com/euclidea_app/
#geometry #solidgeometry #math #maths #mathgames #moremath #mtbos #edtech #iteachmath #mathematics #proof #mathchat #msmath #hsmath #mathisbeautiful #logic #puzzle #problem #solution #drawing #brainteaser #school
"Weekly Puzzle"
The task is:
🎓 Construct a right #triangle with the given #hypotenuse AB so that one its leg is twice longer than the other (BC = 2AC). Try to find the shortest solution using #compass and #straightedge.
What you need:
✅ Carefully read the statement of the problem and look at the picture closely
✅ Solve the problem in the #Euclidea app (like level 1.2) or in the browser version: https://www.euclidea.xyz/game/PerpBisector
✅ Post a screenshot of your solution. Your account should be public so that we can see your post.
✅ Add hashtags #euclidea and #euclidea_puzzle_27
✅ Mention @euclidea_app on the screenshot
✅ Write a proof why your answer is correct (optional)
☑ You can also send us a message with solution in Direct, but publishing a post is better
Like and share with your friends ❤️❤️❤️ One winner will be selected early next week. A reward for the #puzzle is one promo code to unlock levels in the Euclidea app. ❗ Prizes for the correct answers are awarded in Instagram only. We are waiting for your solutions: https://www.instagram.com/euclidea_app/
#geometry #math #maths #mathgames #iteachmath #mathematics #proof #mathchat #msmath #hsmath #instamath #logic #puzzle #problem #solution #drawing #brainteaser
"Weekly Puzzle" #euclidea_puzzle_26
The task is:
🎓 Point H is the orthocenter of triangle CBA. Find the angle BCA, if AC = 2HB and BC = 3AH.
What you need:
✅ Leave your answer in the comments below! 👇
✅ Write a proof why your answer is correct (optional)
Like and share with your friends ❤️❤️❤️ One winner will be selected early next week. A reward for the puzzle is one promo code to unlock levels in the Euclidea app. ❗ Prizes for the correct answers are awarded in Instagram only. We are waiting for your solutions: https://www.instagram.com/euclidea_app/
#euclidea #geometry #solidgeometry #math #maths #mathgames #moremath #mtbos #edtech #iteachmath #mathematics #proof #mathchat #msmath #hsmath #mathisbeautiful #instamath #logic #puzzle #problem #solution #drawing #brainteaser #highschool #orthocenter #triangle
#didyouknow that? Or 6 interesting facts about 2020.
⠀
💥 2020 is the 22nd natural number for which the sum of the digits is equal to the number of the digits (in other words, the #arithmetic mean of digits equals 1).
⠀
💥 "Two Thousand Twenty"  all words begin with the same letter in English.
⠀
💥 All the digits of 2020 are even. In its square and cube all digits are even too. On the contrary, in 2020th prime number p(2020) = 17579 all digits are odd.
⠀
💥 The 2020th decimal digits of constants π, e and φ are the same. By the way, this property is not so rare. The minimum such number is 12, the predecessor of 2020 is 1905, the next will be 2060.
3,141592653589 ... 12694683 ...
2,718281828459 ... 82922443 ...
1,618033988749 ... 43062623 ...
⠀
💥 According to a hypothesis of Wacław Sierpiński, 2020 is not representable in the form x^3 + y^3 + 2*z^3 with integers x, y, z.
⠀
💥 2020 is selfdescriptive. A selfdescriptive number is b digits long, indexed by 0 ... b1 and for all n, the nth digit equals the number of n's in the number. In the number 2020 there are 2 zeros, 0 ones, 2 twos, and 0 threes.
Like and share with your friends ❤️❤️❤️
⠀
#interestingfacts #about2020 #geometry #facts #knowledge #dailyfacts #math #maths #mathgames #selfdescriptive #mtbos #edtech #iteachmath #mathematics #msmath #hsmath #mathisbeautiful #logic #puzzle #trysomethingnew #drawing #brainteaser #геометрия #математика #интересныефакты #интереснознать #хочувсезнать
"Weekly Puzzle"
The task is:
🎓 Given a quadrilateral ABCD inscribed in a circle of radius 1. The angle ABC is 45°. E and F are the intersection points of the opposite sides of the quadrilateral. It appeared that ∠BFC = ∠BEA. Find the area of the quadrilateral FBED.
What you need:
✅ Carefully read the statement of the problem and look at the picture closely
✅ Post a screenshot of your solution. Your account should be public so that we can see your post.
✅ Add hashtags #euclidea and #euclidea_puzzle_25
✅ Mention @euclidea_app on the screenshot
✅ Write a proof why your answer is correct (optional)
☑ You can also send us a message with solution in Direct, but publishing a post is better
One winner will be selected early next week. A reward for the puzzle is one promo code to unlock levels in the Euclidea app. ❗ Prizes for the correct answers are awarded in Instagram only. We are waiting for your solutions: https://www.instagram.com/euclidea_app/
#geometry #solidgeometry #math #maths #mathgames #moremath #mtbos #edtech #iteachmath #mathematics #proof #mathchat #msmath #hsmath #mathisbeautiful #instamath #logic #puzzle #trysomethingnew #solution #drawing #brainteaser
"Weekly Puzzle"
The task is:
🎓 2020 is the 22nd natural number for which sum of the digits is equal to the number of digits (the first such number is 1, the second  11, the third  20, etc.) Find the 330th natural number with this property. #euclidea_puzzle_24
What you need:
✅ Leave your answer in the comments below! 👇
✅ Write a proof why your answer is correct (optional)
One winner will be selected early next week. A reward for the puzzle is one promo code to unlock levels in the Euclidea app. ❗ Prizes for the correct answers are awarded in Instagram only. We are waiting for your solutions: https://www.instagram.com/euclidea_app/
#geometry #solidgeometry #math #maths #mathgames #moremath #mtbos #edtech #iteachmath #mathematics #proof #mathchat #msmath #hsmath #mathisbeautiful #instamath #logic #puzzle #quiz #solution #drawing #brainteaser #puzzles #euclidea
🎅 Dear friends! 🥳
May all the 12 months of the new year be full of new achievements, many interesting problems to solve and beautiful solutions for you! Thank you so much for being with us.🙏🏻❤🤗 Happy New Year and happy solving! 🎅🎄 🎅🎄 🎅🎄🎅🎄🎅🎄🎅🎄🎅🎄🎅🎄🎅🎄🎅🎄🎅🎄🎅🎄🎅🎄🎅🎄🎅🎄🎅🎄 🎅 Дорогие друзья! ☃
Пусть все 12 месяцев нового года будут наполнены новыми достижениями, интересными задачами и красивыми решениями! А дни  счастьем для вас и вашей семьи! Спасибо, что вы с нами! 🙏🏻❤🤗 Счастливого Нового года!
#euclidea #newyear2020 #geometry #solidgeometry #math #maths #mathgames #iteachmath #mathematics #mathchat #msmath #hsmath #mathisbeautiful #instamath #logic #puzzle #solution #drawing #brainteaser #happynewyear #marrychristmas #wishcometrue
🎄Weekly Puzzle🎄
Dear friends, this time the puzzle will stretch for two weeks. Good news: there will be more prizes 😉 We wish you a Merry Christmas and a Happy New Year!
The task is:
🎓 The length of AB is 1. Construct a point C on the ray AB such that the length of AC is equal to 2.020. Try to find the shortest solution using compass and straightedge.
What you need:
✅ Carefully read the statement of the problem and look at the picture closely
✅ Solve the problem in the #Euclidea app (like level 1.1 or 4.6) or in the browser version: https://www.euclidea.xyz/game/Sqrt2
✅ Post a screenshot of your solution. Your account should be public so that we can see your post.
✅ Add hashtags #euclidea and #euclidea_puzzle_23
✅ Mention @euclidea_app on the screenshot
✅ Write a proof why your answer is correct (optional)
☑ You can also send us a message with solution in Direct, but publishing a post is better
The winners will be selected after New Year holidays. ❗ Prizes for the correct answers are awarded in Instagram only. We are waiting for your solutions: https://www.instagram.com/euclidea_app/
#newyear2020 #geometry #solidgeometry #math #maths #mathgames #mtbos #edtech #iteachmath #mathematics #proof #mathchat #msmath #hsmath #mathisbeautiful #instamath #logic #puzzle #problem #solution #drawing #brainteaser #happynewyear #2020