Question

What is the radius of the circle?

Answer 1

Using the formula

`(arc)/(2 \pi r) = (degree)/(360)`

Isolate r

`r= (360arc)/(2 \pi degree)`

Insert values and calculate r

`r= (360arc)/(2 \pi degree)`

`r= (360(8))/(2 \pi 100) m`

`r= (2880))/(200\pi ) m`

`r= (14.4)/(\pi ) m`

`r= 4.563 m`