SOLUTION: in triangle abc, the measure of angle abc = 40 and the measure of angle b =111 find c

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Question 173256: in triangle abc, the measure of angle abc = 40 and the measure of angle b =111 find c
Found 2 solutions by Fombitz, nerdybill:
Answer by Fombitz(13823) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of the angles for any triangle equals 180 degrees.
a%2Bb%2Bc=180
40%2B111%2Bc=180
c=180-40-111
c=29

Answer by nerdybill(5404) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of the three interior angles of any triangle equals 180 degrees.
.
Therefore,
c + 40 + 111 = 180
c + 151 = 180
c = 29 degrees