Question

find the circumference of a circle with radius 7cm

Answer 1

Answer:

circumference : 2nr

radius : 7 m

then ,

2×22/7×7 = 44 m .

Answer 2

circumference of a circle is 2 pie r

2 x pie x 7

pie value is 22/7 or 3.14

2 x 3.14 x 7

answer is 43.96

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