The area of a square can be found using the equation a = s², where a is the area and s is the measure of one side of the square.

match the equation for how to solve for the side length of a square to its description.

we know that

The area of a square is equal to

where

s is the length side of a square

To solve for a side length of a square, isolate the variable s

square root both sides

In this problem we have

substitute in the formula to find s

therefore

the answer in the attached figure

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²