Question

C = 628 m, d = ? , r = ?

The circumference of a circle is given. Find the diameter and radius to the nearest hundredth.

Answer 1

Answer: d=199.90 m, r=99.95 m

Explanation:

C=
`\pi d` substitute what you know C=628

628=
`\pi`d

d=628/
`\pi`

d=199.90 m

The radius is half the diameter

r=d/2 = 199.9/2

r=99.95 m