Question

The length of a rectangular box is 8cm. If its diagonal is 10cm. Find its width​

Answer 1

Explanation:

The diagonal of this rectangular box serves as the hypotenuse of the 2 right triangles that exist within this rectangle. The length is one leg, the hypotenuse is...well, the hypotenuse, so we need to use Pythagorean's Theorem to find the missing leg.

`10^2=8^2+x^2` and

`100-64=x^2` and

`x^2=36` so

x = 6. The width is 6.