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Amy and Brian want to fence in a circular portion

User Silvaren
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Answer:

Explanation:

if this is the backyard question for 30pi feet then here:

circumference of a circle = 2πr

30π = 2πr

divide both sides by 2π

30π / 2π = 2πr / 2π

r = 15 ft

area of the circular portion is 225π squared

User Joey Harwood
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