Question

Find the circumference of the circular pipe of radius 21cm. (π= 22/7)

Answer 1

Answer:

Circumference of the circle ⭕ = 2πr

Therefore, 2 × 22/7 × 21

= 132 cm

Thus, the circumference of the circle ⭕ having radius 21 cm is 132 cm.

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Answer 2

Answer:

Circumference of circle = 2πr

Step-by-step explanation:

Here, r=21

circumference = 2×22/7× 21

= 132 cm

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