Step-by-step explanation:
hope it helps you......
Answer:
180 - 114 = 66
66/2 = 33
I think they are all 33 degrees
A divide by sin A =b divide by sinB
3 divide by sin 20= AB divide by sin 90
AB=sin 90 times 3 divide by sin 20
=8.77 cm
Hope this helped, from what i recall, i think this is how you solve the problem.