The area of a circle depends on the radius. Use the equation A(r) =pi r2 to compute A(7). Round your answer to the nearest hundredth.

Question

asked Apr 9, 2018 200k views

1 Answer

Karel Lenc · Answer 1 · 2018-04-13T01:24:07+0000

the equation is given to compute A(7) = A(r) pi r²
7 = pi r²
r² = 7/pi
value of pi = 3.14
so,
r² = 7/3.14
r = √ (7/3.14)
r = 1.49