Question

Find the circumference of each circle. Round to the nearest tenth. Use 3.14 or 22/7

A. 1,078
B. 164
C. 154
d. 77 ​

Answer 1

Circumference of given circle = 154 cm² (Approx.)

Explanation:

In given diagram:

Diameter of given radius = 49 cm

Value of π = 3.14

Find:

Circumference of given circle

Computation:

Radius of given circle = Diameter of given radius / 2

Radius of given circle = 49 / 2

Circumference of given circle = 2πr

Circumference of given circle = 2(3.14)(49/2)

Circumference of given circle = (6.28)(49/2)

Circumference of given circle = 153.86

Circumference of given circle = 154 cm² (Approx.)