Question

in triangle ABC,angle A+angle B=65°and angle B +angleC=140,find the value of angleB and angleC.

Answer 1

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Answer 2

Hey buddy. I am not writing angle. I am just writing it A B and C. Please don't mind.

Given:- A+B = 65°
So, A = 65-B........(i)
B+C = 140°.........(ii)

A+B+C = 180° { Angle sum property}
65-B +B +C = 180 (from i)

65 + C = 180
C = 180 - 65
C = 115°

Put this value on (ii)

B+C = 140
B + 115 = 140
B = 140 - 115
B = 25°

If you satisfied mark it brainliest.