Question

Exercise 22E
Find the circumference of each circle.
Take n=22/7
Diameter=9.8

Answer 1

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similar answer

Circumference =2πr

r=14cm

=2πr=2× 22/7 ×14

=2×22×2

=4×22

=88cm

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Answer 2

Answer:

Circumference of the circle is 30.8 unit

Step-by-step explanation:

Given:

Diameter of the circle ( D) = 9.8 unit

Radius of the circle (r) = D /2 = 9.8 / 2 =4.9 unit

As we know that,

Circumference of a circle = $2\pi r$

                                           = 2 × (22/7) × 4.9

                                           = 2 × 22 × 0.7

                                           = 30.8 unit