Finding missing measure 15 pi ft B 13 pi4 ft C 15 pi2 ft D 3
     Finding missing measure  15 pi ft B. 13 pi/4 ft C. 15 pi/2 ft  D. 30 pi ft E. 15 ft F. None of the above  A. 20 pi in  B. 20 in C. 1/20 in  D. 125 pi^2/9 in E. 125 in F. None of the above  A. 21 pi/4 feet  B. 12 + 21 pi/4 feet  C. 21 pi/12 feet  D. 24 + 21 pi/4 feet  E. 288 + 21 pi/12 feet  F. None of the above 
  
  Solution
10. s=r theta
= 10 * 3pi/4 =15pi/2
Correct option is C
11.s=50pi/3 , theta=5pi/6
r=s/theta=50pi/3 /5pi/6=20
correct option is B

