1

Problem

The TV remote measures 15cm in length and 4cm in width. What is its perimeter?

2

Formula

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

3

Step

The length given in the question is

15cm

4

Step

The width mentioned in the question is…​

4cm

5

Step

Substitute the values by using formula

p = 2 (15 + 4)

6

Step

After simplification,we get

p = 2 (19) =38

7

Solution

Then the perimeter of a rectangle is 38cm.

8

Sumup

Please summarize steps

Choices

9

Choice-A

This is not correct because it does not match the calculated perimeter of a rectangle

Wrong 36 cm

10

Choice-B

This is correct because it match the calculated perimeter of the rectangle

Correct 38 cm

11

Choice-C

This is not correct because it does not match the calculated perimeter of a rectangle

Wrong 33 cm

12

Choice-D

This is not correct because it does not match the calculated perimeter of a rectangle

Wrong 34 cm

13

Answer

Option

B

14

Sumup

Please summarize choices