In triangle ABC, if A + B = 108o and B +C = 130o, find A, B and. C

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

A + B = 108o and B +C = 130o

A + B + B +C = (108o + 130o)
(A + B +C) + B = 238o
 B = 238o – 180o               (A + B +C = 180o)
B = 58o
C = 130o – 58o= 72o         A = 108o – 58o = 50o
Hence, A = 50o, B = 58o and C = 72o

Answered by  | 4th Jun, 2014, 03:23: PM