It will work best if it’s a fairly steep angle... STEP 2 - MAKE SQUARE ... You have created a visual proof of Pythagoras' theorem!

These two teenage math stars have developed five new proofs ... triangle’s angles. The paper challenges the long-held belief ...

The perpendicular height is the height at a right angle to the base of the triangle. The isosceles triangle can be split into two right-angled triangles. Pythagoras’ theorem can then be used on ...