Question

A square has an area of 54 ft2. What is the length of a diagonal (in feet)?

Answer 1

Answer:

10.39 or √108

Step-by-step explanation:

All sides in a square are congruent and the area is l×w. so sides must be √54. then using Pythagorean formula.

${ \sqrt{54} }^{2} + { \sqrt{54} }^{2} = {c }^{2}$

then you get 108=c^2 so you take the square root of both sides. leaving c=√108 or about 10.39