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A(r) is a function that gives the area of a circle with radius r. It can be written in equation form as A(r) = 3.14r2. What is the value of A(5)?
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A(r) is a function that gives the area of a circle with radius r. It can be written in equation form as A(r) = 3.14r2. What is the value of A(5)?

User MalcLear
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A(r) = 3.14r²

A(5) = 3.14*5²

= 3.14 * 25 = 78.5

User Rulas
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