Question

The circumference of a circle is 94.20 cm. What is the circle's

radius ? (Take n = 3.14)
The radius of the circle is_ cm.
Enter the answer

Answer 1

radius= 147.89

We just got done learning this in geometry and I was pretty good at it so it should be correct :)

Explanation:

Here's the process I did to get it

C=2(3.14)r

94.20=2(3.14)r

(divide both sides by 2(3.14))

`(94.20)/(2(3.14)) = (2(3.14)r)/(2(3.14))`

^

this cancels out

r=
`(94.20)/(2(3.14))`

(enter it into a calculator)

r= 147.89

Answer 2

The radius of a circle with circumference 94.20 cm is 15 cm

What is the radius of the circle?

Circumference of a circle = 2πr

Where,

π = 3.14

Radius, r = ?

Circumference = 94.20 cm

So,

Circumference of a circle = 2πr

94.20 = 2 × 3.14 × r

94.20 = 6.28r

Divide both sides by 6.28

r = 94.20/6.28

r = 15 cm

Therefore, the radius of the circle is 15 cm