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1.  What quadrant does the terminal side of the angle -230° lie?

 

2. A circle has an arc length of 32π that is intercepted by a central angle of 240°.

What is the radius of the circle?

 Nov 27, 2018
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1.   -230 degrees = +130 degrees   = quadrant II

 

2.     Circumference = pi * d

            32pi = 240/360  pi *d

             32 (360/240) = d = 48     r = 1/2 d = 24 units

 Nov 27, 2018

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