Currently viewing the tag: "Proofs"
For any triangle you can construct a line through one of the vertices parallel to the opposite edge.
Using what you know about angles and parallel lines prove that the angles of the triangle add up to 180 degrees.
Click here to download the ANGLE SUM worksheet.
Click here […]
Replace the letters in FOOT + BALL = GAME with numbers to make the sum correct. Each letter represents a different digit.
Here is one example: F=1, O=9, T=4, B=6, A=5, L=3, G=8, M=2, E=7
How many solutions can you find?
There are 224 solutions altogether.
You can work with pencil and […]
Imagine you have four bags containing a large number of 1s, 4s, 7s and 10s.
You can choose numbers from the bags and add them to make different totals. You don’t have to use numbers from every bag, and there will always be as many of each number as you need.
Choose some […]
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