Question

circle A has a raduis that is twice the length og the raduis of circle B.

Which is an accurate statement about the relationship of these areas of circle A and B and y?

a.the area of circle A is 4 times the area of circle B
b. the area of circle A is twice the area of circle B.
c.the area of circle A is onehalf the area of circle B
d.the area of circle A is one forth the area of circle B

Answer 1

A = 3.14*r^2.

A = 3.14*(2r)^2 = 3.14*4r^2.
So the answer is a.

Answer 2

56

Answer 3

circle a=2x=28
circle b=x=14
you can make up your own lengths to make it easy
circle a=22/7x14x14=616
circle b=22/7x7x7=154
the area of circle b is bigger
that means circle a is four times the area of circle b