Question

1. Find the diameter of a circle whose circumference is 18.85 m. A. 3.46 m B. 12 m C. 6 m D. 2.45 m

Answer 1

18.85 = 3.14d

Divide both sides by 3.14

x=6

The answer is C. 6m

Answer 2

For this case we have to:

The circumference or perimeter of a circle is given by:

`c = \pi d\\`

where d is the diameter of the circle.

Substituting the given value of c,
`c = 18.85m`, we have:

`18.85 = \pi d\\`

`d = (18.85)/(\pi ) \\\\d = 6\\`

Therefore, the diameter of the circle is 6m.

Answer:

Option C