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11-03-2022
Mathematics

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Find the diameter of a circle with an area of 30.25 pi.

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zsm2800 zsm2800

11-03-2022

Answer:

11

Step-by-step explanation:

Radius = R, Diameter = D

Area of a circle A = πR² = π(D/2)² = πD²/4

so D² = 4A/π = 4*30.25π/π = 121

[tex]D=\sqrt{121} = 11[/tex]

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