Find circumferences of circle if radius =21mm – InterviewSolution

1.

Find circumferences of circle if radius =21mm

Answer»

Step-by-step EXPLANATION:

CIRCUMFERENCE of circle = 2πr

= 2× 22/7 × 21

44× 21 / 7

7 and 21 will be cut on the table 7

so , 21 will become 3

= 44× 3

= 132mm

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