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Andrew [12]
2 years ago
12

Find the area of a circle with diameter 18 ft

Mathematics
2 answers:
Semmy [17]2 years ago
8 0
Hello : 
the area is : A=<span>πr²
</span> π ≃ 3.14     r : <span>ridus
</span>   <span>diameter = 2 r
</span>r = 18/2= 9 ft  
  A=3.14×9² = 254.34 ft²

Zinaida [17]2 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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