find the length of arc,S, on a radius 3m intercepted by a central angle of 210 degrees

Question

mertsj · Answer

a central angle of 210 represents this part of the entire circle:  210/360=21/36=7/12
Find the circumference of the circle and multiply it by 7/12.  That will be the length of the arc.

anonymous · Answer

could you please help me with another one? 
Find the area of the sector of the circle with radius 2 meters and central angle of (11pi)/6

mertsj · Answer

It's the same idea.  A central angle of (11pi)/6 represents this part of the entire circle:
[(11pi)/6]/(2pi)= 11/12 of the entire circle.
Find the area of the circle and multiply it by 11/12.  That will be the area of the sector.

anonymous · Answer

Thanks!

mertsj · Answer

yw