1

Problem

A square has an area of \$64 cm^2\$. What is the length of each side?

2

Step

The area(A) of a square is

64 sq.

3

Step

Now we want to find the sides of a square.

4

Formula

Area of a square is A = Side x Side.

5

Step

Substitute the values

64 = s x s

6

Step

Apply square root on both sides

\$\sqrt(64) = \cancel(\sqrt)(s^\cancel(2))\$

7

Step

The square root of 64 is

8

8

Step

After simplification,we get

8 = s

9

Solution

The sides of a square are 8.

10

Sumup

Please summarize steps

Choices

11

Choice-A

This is not correct because it doesn’t satisfy the given area of 64 sq.cm when plugged into the formula for the area of a square

Wrong 12 cm

12

Choice-B

This is correct because it satisfy the given area of 64 sq. cm when plugged into the formula for the area of a square

Correct 8 cm

13

Choice-C

This is not correct because it doesn’t satisfy the given area of 64 sq.cm when plugged into the formula for the area of a square

Wrong 4 cm

14

Choice-D

This is not correct because it doesn’t satisfy the given area of 64 sq.cm when plugged into the formula for the area of a square

Wrong 10 cm

15

Answer

Option

B

16

Sumup

Please summarize choices