Calculate Square Side Length: Finding Dimensions When Area = 64

Question

A square has an area of 64.

How long are its sides?

00:00 Find the side of the square

00:03 Use the formula for calculating the area of a square (side squared)

00:08 Substitute appropriate values and solve to find the side

00:13 Extract the root

00:22 And this is the solution to the problem

Remember that the area of a square is equal to the side of the square raised to the second power.

Now we substitute the data into the formula:

$64=L^2$

Then, we calculate the square root:

$\sqrt{64}=L$

$L=8$

$8$