Question

find the circumference of the circle. use your calculators value of π. round your answer to the nearest tenth.

circumference = units

Explanation:

Step1: Identify diameter, recall formula

The diameter $d = 21.6$ cm. Circumference formula: $C = \pi d$

Step2: Substitute value, calculate

$C = \pi \times 21.6$
Using calculator $\pi$, $21.6 \times \pi \approx 67.858$

Step3: Round to nearest tenth

Round $67.858$ to 1 decimal place.

Answer:

67.9 units