Question

Find circumference of the circle whose radius is 21cm. Take π=22/7 

122cm

142cm

132cm

112cm

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Answer 1

Step-by-step explanation:

circumference = 2πr

= 2 × 22/7 × 21 = 132cm

Answer 2

Answer:

Circumference of circle =2 × 22/7 × radius.

Radius = 21 cm

Step-by-step explanation:

Circumference = 2×22/7 × 21= 2 × 22 ×3 = 44 ×3 = 132 cm .