Question

find the diameter of circle whose circumference is 66 m​

Answer 1

Answer:

21.01

Step-by-step explanation:

C=2πr

d=2r

Solving ford

d=C

π=66

π≈21.00845

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Answer 2

Answer:

C = 2πr

66= 2× 22/7 × r

(66× 7) /44 = r

r= 10.5 m

D = 2r = 21 m