Question

The circumference of a circle is 64 pi cm. Find the diameter, the radius, and the length of an arc

Answer 1

Answer:

length of arc:

$\frac{190}{360} \times 64\pi$

$33.8\pi \: cm$

diameter of circle

$2\pi {r}^{} = 64\pi$

${r}^{} = \frac{64\pi}{2\pi}$

${r}^{} = 32cm$

diameter of circle

= 2r

= 2(32)

= 64 cm