Question

The circumference of a circle is 15π. What is the area?

Answer 1

Answer:

$\: \: \:$

The area of circle is πr².

Answer 2

$circumference = 15\pi\\ 2 \not\pi \: r = 15 \not\pi \\ 2r = 15 \\ r = \frac{15}{2} \: \: (or) \: \: r = 7.5$

$area = \pi \: {r}^{2} \\ area = 3.14 \times (7. {5)}^{2} \\ area = 3.14 \times 56.25 \\ area = 176.625 \: sq. \: cm$