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The function A(r)=πr^2 may be used to find the area of a circle with radius r. Find the area of a circle whose radius is 11 centimeters. Please help me ASAP!!!!!!! :(
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The function A(r)=πr^2 may be used to find the area of a circle with radius r. Find the area of a circle whose radius is 11 centimeters. Please help me ASAP!!!!!!! :(

User Smaqsood
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1 Answer

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Just evaluate the function: A(r) = πr² by substituting 11 in for 'r'

so A(11) = π(11)²

or Area = 121π

User Tenshiko
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