Find the circumference of a circle with diameter 5.42m. Give your answer rounded to 2 DP The diagram is not drawn to scale

Question

asked Jan 11, 2023 227k views

1 Answer

Thomas Vaughan · Answer 1 · 2023-01-17T20:22:10+0000

Answer:

17.03 meters

Explanation:

The circumference of a circle:

$C=2\pi r \mbox{ or }C=\2d$

where r is the radius and d is the diameter.

Given the diameter here, all you need to do is multiply it by pi:

$\rightarrow C=\pi d\\\rightarrow C=(3.14159...)(5.42)\\\rightarrow C=17.0274...$

Rounded to 2 decimal places, you get 17.03 meters.