Recall Pythagorean Theorem: a² + b² = c²
if c = 4cm and, by law of the 45°-45°-90° triangle, both legs are of the same length, we will denote thes
16 = 2( x² ) Divide both sides by 2
8 = x² Take the square root of both sides
√8 = x
So, the length of each leg of the triangle measures √8 cm.
