Math, asked by hamzaspy5, 9 months ago

29. In triangle ABC, side BC is produced to D
If ABC = 40° and ACD=120°, then A= ??
120°
400
D
С
B

Answers

Answered by pratyushmishra10000

4

Angle ACD+angle ACB= 180 (liners pair)

120+angleACB = 180

Angle ACB=60

Angle A+B+C=180

A+40+60= 180

A+100= 180

Angle ,A= 80

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