The circumference of circle A is three times the circumference of circle B. Which statement about the areas of the circles is true?

The area of circle A is three times the area of circle B.

It depends on the value of π.

It depends on the actual diameters of the circles.

The area of circle A is nine times the area of circle B.

Question

Mathematics

King Wade

14 July, 09:43

The circumference of circle A is three times the circumference of circle B. Which statement about the areas of the circles is true?

The area of circle A is three times the area of circle B.

It depends on the value of π.

It depends on the actual diameters of the circles.

The area of circle A is nine times the area of circle B.

+2

Answers (1)

Know the Answer?

Ciara · Answer 1

The area of circle A is nine times the area of circle B.

c1:

c=2*pi*r

so imagining r = 3 then, c=6pi

area=pi*r^2 = > 9pi

c2:

so imagining r = 9 then, c=18pi

area=pi*r^2 = > 81pi

81/9 = 9 so the answer is:

The area of circle A is nine times the area of circle B.