Part III. For item 11-20, refer to the figure at the right with Cl and Ri. Answer the following: 11. Find a, if b= 89° and c= 38° A 12. Find b, if a= 75° and d= 130° 13. Find c, if d= 121° and e= 590 KO b M d 14. Find e, if a= 28º and b= 90° R 15. Find a, if b= 80°, c= 35º, and d= 145° han you coby the followingrohioms