Pre-calc Please help me!
Refer to the figure below and mark all statements that are true.
*copy and paste the whole link
http://www.flickr.com/photos/38529613@N06/3553000696/

a. If the measure of θ is 0.5 radians, then the arc length is r/2 .

b.If the measure of θ is 60°,then the arc length is r.

c.The ratio of the arc length to r is always equal to 1/π

d. If the ratio of the arc length to r is 1, then the measure of θ is 1 radian.

Question

Pre-calc Please help me!
Refer to the figure below and mark all statements that are true.
*copy and paste the whole link
http://www.flickr.com/photos/38529613@N06/3553000696/

a. If the measure of θ  is 0.5 radians, then the arc length is r/2 .

b.If the measure of  θ is 60°,then the arc length is r.

c.The ratio of the arc length to r is always equal to 1/π

d.  If the ratio of the arc length to r is 1, then the measure of θ is 1 radian.

anonymous · Answer

got it! it's a and d