A (r) is a function that gives area of a circle with radius r. It can be written in equation form as A (r) = 3.14r to the secon dpower what is the value of A (4)

Question

Lilian Young

Mathematics

20 February, 13:18

A (r) is a function that gives area of a circle with radius r. It can be written in equation form as A (r) = 3.14r to the secon dpower what is the value of A (4)

+4

Answers (1)

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Pablo Hodge · Answer 1

This is a common circle area question. just plug 4 wherever r and solve. in this case, A (4) = (3.14) (4) ^2. type this into a calculator, (but use the actual pi button to get the best results) and you get 50.26548246.