Question

A diagonal of a square mirror is 10 inches long. What is the length in inches of each side of the mirror

Answer 1

Explanation:

a square has sides that are all the same length. That means that if we have a diagonal of a square that measures 10, using Pythagorean's Theorem,

`x^2+x^2=10^2` and

`2x^2=100` and

`x^2=50` so

`x=√(50)=√(25*2)=5√(2)`