Question

In a 45°- 45°- 90° right triangle, the hypotenuse is 4 cm. How long are the legs?

Answer 1

Let x = length of legs
\[4^{2}=x ^{2}+x ^{2}=2x ^{2}\]
\[x ^{2}=\frac{4^{2}}{2}\]
Can you finish it?