3 years ago

Find the area of a circle with diameter 18 ft

2 answers:

8 0

Hello :
the area is : A=πr²
 π ≃ 3.14 r : ridus
 diameter = 2 r
r = 18/2= 9 ft
A=3.14×9² = 254.34 ft²

Zinaida [17]3 years ago

3 0

Formula of the Area of a circle: π.R²

Diameter =18 ft so R ,te radius = 9ft

Hence area of this circle =π.(9)²= 81π ft² OR 254.47 ft²

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