22 find the circumference of circle with radius 21 cm 7

Answers 2

Answer:

132 cm

Step-by-step explanation:

We have,

Radius = 21 cm

Circumference = 2πr

= 2 x 22 x 21

7

= 132 cm

Answer:

2πr is the circumference of the circle

2

[tex]2 \times \frac{22}{7} \times 21 \\ = 3 \times 22 \times 2 \\ = 66 \times 2 \\ = \: 132 \: is \: the \: answer[/tex]

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