Question

Find the circumference of a circle whose diameter is 12 inches.
1. 88.1876 cm
2. 87.4672 cm
3. 90.2348 cm
4. 95.7072 cm

Answer 1

Correct Answer - Option 4 : 95.7072 cm

Given:

Diameter of the circle = 12 inches

Concept used:

1 inch = 2.54 cm

Formula used:

Circumference of circle = 2 π r

r = d/2

Calculation : 

r = 12/2

⇒ r = 6 inches  = 15.24cm

⇒ Circumference of circle = 2π × 15.24

⇒ 95.7072cm