Question

What is the arc length of the subtending arc for an angle of 72 degrees on a circle of radius 4?

Answer 1

A. 8π
B. 4π/5
C. 16π/5
D. 8π/5

Answer 2

please help @Leader

Answer 3

Hi there :)

Answer 4

Do do you know the formula to find the arclength?

Answer 5

\[s=r \times \theta\]
Where \(\theta\) is in radians :)

Answer 6

So we are already given that r=4

We just need to make 72 degrees into radians :)

Answer 7

And we can use the conversion that 180 degrees equals to \(\pi\)