Question

A diagram of a coin is shown.

10.5 mm
What is the approximate circumference of the coin? Use 3.14 as an estimate for it.
O A 21 mm
O B. 33 mm
O c. 66 mm
O D. 84 mm

Answer 1

66mm

Explanation:

A diagram of a coin is shown.

Radius = 10.5 mm

The approximate circumference of the coin is calculated using the formula

2πr

Use 3.14 as an estimate for it.

r = 10.5mm

Hence:

2 × 3.14 × 10.5

= 65.94

Approximately = 66mm

O A 21 mm

O B. 33 mm

O c. 66 mm

O D. 84 mm