Question

The radius of a circle measures 7 cm. What is the circumference of the circle?Use 3.14 for a, and do not round your answer. Be sure to include the correct unit in your answer.cmСП7 cm5

Answer 1

The circumference of the circle is 43.96cm

The formula to find the circumference of a circle is:

$C=2\pi r$

Where r is the radius. In this case, π = 3.14 and r = 7cm

Then:

$C=2\cdot3.14\cdot7\operatorname{cm}=43.96\operatorname{cm}$