Question

13 point

A square box has a height of 21 inches. What is the measure of the
diagonal of the box? Round to the tenths place.

Answer 1

29.7 inches

Explanation:

if it's a square box we can assume that all sides are equal. so the width is also equal to 21 inches.

to find the diagonal we use the pythagorean theorem which states that a^2 +b^2 =c^2 where c is the diagonal and (a) and (b) are 21

so diagonal is the root of

21^2 + 21^2

answer is 29.7