Question

Help plssssssssssssss

Answer 1

Answer: AB 90 IB 150 IC 135 AC 90

Explanation:

All triangles have to equal 180, if B is 60 and I is 90, 60+90=150, 180-150=30 then A=30 if a equals 30 than 60+30=90 A+B=AB (same with the others.)