The diagram below shows the radius of the circular opening of a drinking cup. Which of the following is closest to the circumference of the opening in centimeters?

Question

asked Apr 14, 2022 156k views

1 Answer

Fpopic · Answer 1 · 2022-04-20T01:55:48+0000

Answer:

25 cm

Explanation:

$C=2\pi r$ where r is the radius of the circle

Plug in the given radius (4 cm)

$C=2\pi (4)\\C=8\pi\\C=25$

Therefore, the circumference of the opening is approximately 25 cm.

I hope this helps!