Respuesta :

loehrwyatt

Answer:

7x21

Step-by-step explanation:

First, we need to find the length of the pool. Since it is three times as long as it is wide, it is 21 feet long (7 x 3 = 21). That way we can tell that it is 7x21, with a perimeter of 56 feet, and an area of 147 feet squared.

abidemiokin

The dimension of the pool is 21ft by 7ft

The formula for calculating the area of a rectangle is expressed as:

A = LW where:

L is the length

W is the width

Given the following:

Width of the pool = 7fet

Length = 3W

L = 3(7)

L = 21 feet

Hence the dimension of the pool is 21ft by 7ft

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