Math, asked by bhawnarajput1982, 11 months ago

The radius of a circle is 21 cm. Find its circumference (Take pi = 3 1/7) 7)

Answers

Answered by shreya9741

1

Answer:

plz explain the value of pi properly

Answered by harisurya0102

0

Answer:

Step-by-step explanation: we know circumference of circle is 2×pi×r

From given pi=31/7

2×21×31/7

2×3×31

186

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