Question

C. Find the diameter and radius of the circle whose circumference
is as follows.
a. 12.56 cm​

Answer 1

Answer:

ans. is ..... 4cm....

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Answer 2

Answer:

circumference = pai × D

so, pai ×D = 12.56 cm

D = 12.56/3.141 (pai = 3.141)

D = 12.56÷ 3.141

= 3.998 cm

Diameter =3.99

Redius = D÷2

=3.99÷ 2

=1.99 cm

Radius= 1.99 cm .