Which of the following ratios can be derived from the formula for the circumference of a circle? Select all that apply A c/pi B c/2r C c/d D c/2pi E d/2c

Question

asked Dec 13, 2021 185k views

1 Answer

Timir · Answer 1 · 2021-12-19T09:25:43+0000

Answer:

A c/pi

B c/2r

C c/d

D c/2pi

Explanation:

The formula for the circumference of a circle is

$c = 2\pi \: r$

Or

$c = \pi \: d$

When we solve for d, we get:

$d = (c)/(\pi)$

When we solve for r, we get:

$r = (c)/(2\pi)$

When we solve for π, we get:

$\pi = (c)/(d)$

or

$\pi = (c)/(2r)$

All except the last one are correct