Question

What is the length of the radius of the cirlce?

Answer 1

Remember the formula for arc length:

`L = r \theta`

• 
  `r` is the radius of the circle
• 
  `\theta` is the central angle

By substituting in values given, we can find
`r`.

`r \frac{7 \pi } {10}  = 33`

`r = (330)/(7 \pi) \approx 15`

The answer is choice B, 15 cm.