IF YOU ANSWER THIS YOU GET 20 POINTS

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

In a circle, a 45° sector has an area of 32π cm2. what is the radius of this circle? 32 cm 12 cm 16 cm 8 cm

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x