1

Problem

Find the area of square shape tiles is the side is 9 cm.

2

Formula

The area of a square is A = Side x Side .

3

Step

The side(s) of a square is

9 cm

4

Step

Substitute the values by using formula

A = 9 x 9

5

Step

After multiplication, we get

81

6

Solution

Then the area of a square is \$81 cm^2\$.

7

Sumup

Please summarize steps

Choices

8

Choice-A

This is not correct because they represent different values than the correct area calculation for a square

Wrong 80 sq.cm

9

Choice-B

This is not correct because they represent different values than the correct area calculation for a square

Wrong 85 sq.cm

10

Choice-C

This is correct because they represent same values than the correct area calculation for a square

Correct 81 sq.cm

11

Choice-D

This is not correct because they represent different values than the correct area calculation for a square

Wrong 83 sq.cm

12

Answer

Option

C

13

Sumup

Please summarize choices