The width of the walkway is: 3 feet
Step-by-step explanation:
Given
Length of pool = 20 feet
width of pool = 40 feet
Let x be the width of the side walkway
Then the length with walkway will be: 20+2x
Width with walkway will be: 40+2x
Then total area with walkway:
so,
Dividing both sides by 4
As the measurement of length cannot be negative, we will only consider the positive value.
Hence,
The width of the walkway is: 3 feet
Keywords: Rectangle, Area
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