Question

A 12ft by 15ft rectangular swimming pool has a 3ft wide no slip surface around it. What is the outer perimeter of the no-slip surface? . A- 78ft. B-78ft^2. C-198ft. D-198ft^2

Answer 1

First you add 3 twice to both sides of the swimming pool
12 + 6 = 18
15 + 6 = 21

The perimeter is the sum of all sides therefore 

18 + 18 + 21 + 21 = 78

The answer is A

Answer 2

Answer:

This is the Multiple choice answers.

Step-by-step explanation:

1: 78 ft

2: 4.4 π

3: 36 units

4: 131/3yd²

5: 6.25 π in.²

6:  36

7: (2,0)

Hope this helps!