Respuesta :
The outer perimeter of the no-slip surface is equal to 78 feet.
Perimeter is a term used to describe the sum of the outside edge lengths or it can also be described as the whole of the outer edge or boundary.
The outer perimeter of this swimming pool can be determined by adding 3 feet twice to all the sides of the rectangular swimming pool and then adding these sides together.
Since it is a 12-ft-by-15-ft rectangular swimming pool, this means that two sides of this swimming pool are 12 feet and two sides of this pool are 15 feet, therefore;
12 + 6 = 18
15 + 6 = 21
Now the perimeter can be determined by adding all the sides as follows;
18 + 21 + 18 + 21 = 78 feet
Hence, the outer perimeter of the no-slip surface is calculated to be 78 feet.
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