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22-06-2019
Mathematics

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Find the area of a circle with diameter 18 ft.

Respuesta :

22-06-2019

Answer:

81 π / 254.469004941 ft²

Step-by-step explanation:

Area of circle = π × r²

Half the diameter = radius

18 ft ÷ 2 = 9 ft

9 ft = radius

Area of circle = π × 9²

Area of circle = 81π

Area of circle = 81 π / 254.469004941

Area of circle =

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