Question

What is the area of a circle with a diameter of twenty-eight meters? Use twenty-two sevenths for pi.

six hundred sixteen square meters

six hundred thirty-eight square meters

six hundred sixty square meters

six hundred eighty-two square meters
@dg2

Answer 1

@hello_j @xanny6

Answer 2

area is pi r^2, so cut the diameter in half

Answer 3

r=28/2=14

Answer 4

put in area =pi*r^2
=3.14*14*14

Answer 5

so area=615.44

Answer 6

I got 615.44

Answer 7

if use pi=22/7 then =616