Question

82 Find the circumference

of a circle with a radius
of 10cm.

A. 6.28 m
B. 62.8m
C. 628m
D. 6280m
​

Answer 1

B. 62.8m

Explanation:

C= 2πr= 2*3.14* 10 m= 62.8 m

Assumed radius is 10 m as the answer options are in metre

Answer 2

0.628 m (This is the correct answer but I cant find it in your options)

Explanation:

Radius = 10 cm = 0.1 m

Now, The circumference:

=> Circumference =
`2\pi r`

=> C = 2(3.14)(0.1)

=> C = 0.628 m