Question

The formula for finding the area of a square that has a side length, s, is A = s2. If a square has an area of 40 square units, what is the length of a side?

Answer 1

Answer:

The side length of square is $2\sqrt{10}$ units.

Step-by-step explanation:

Given : The formula for finding the area of a square that has side length s is given as $A=s^2$

Also, given the area of a square is 40 square units.

We have to find the length of the side of square.

Consider the given formula,

$A=s^2$

We are given area s 40 square units

So, $40=s^2$

Taking square root both sides, we have,

$\sqrt{40}=s$  

Simplify, we have,

$s=2\sqrt{10}$ units.

Thus, The side length of square is $2\sqrt{10}$ units.

Answer 2

The length of side can be calculated as 
s = √40
   = √4x10
   = 2√10