1

Problem

Charles’s desk is 12 feet 8 feet. What is the perimeter of her desk?

2

Step

Length(l) of a desk is

12 feet

3

Step

Width(w) of a desk is

8 feet

4

Hint

The desk is shaped like a rectangle, so we can use the formula for finding the perimeter of a rectangle.

5

Formula

Perimeter (p) of rectangle is p = 2(l + w).

6

Step

Substitute the values by using formula

p =2(12 + 8)

7

Step

After simplification

p = 2(20) = 40

8

Solution

The perimeter of Charles' desk is 40 feet.

9

Sumup

Please summarize steps

Choices

10

Choice-A

The answer provided does not correspond with the given option. As a result, this option is incorrect

Wrong 20 ft

11

Choice-B

The answer matches the option, therefore it is correct in comparison to the other choices

Correct 40 ft

12

Choice-C

The answer provided does not correspond with the given option. As a result, this option is incorrect

Wrong 44 ft

13

Choice-D

The answer provided does not correspond with the given option. As a result, this option is incorrect

Wrong 68 ft

14

Answer

Option

B

15

Sumup

Please summarize choices