Question

is my answer correct??

Find the arc length intercepted by a central angle of pi/2 radians in a circle whose radius is 24 inches.


48π
24π
12π <--- i chose this!

Answer 1

arc length is angle (in radians) * radius
in this case
\[ \frac{\pi}{2} \cdot 24 = 12 \pi \text{ inches} \]

Answer 2

@phi thank you! what about this question?? ):

In what quadrant does the angle -8pi/5 terminate?

I <--- i chose this!
II
III
IV