Math, asked by himanshut2, 4 months ago

HELP PLZZZZ..

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Answered by adprasad

1

Answer:

angle cod+ angle dob+ angle aoc=180°

since it is a straight line

3x-7+55+x+20=180

4x+68=180

4x=112

x=112/4

x=28°

angle aoc=28+20=48°

angle cod=3 x 28 -7=84-7=77

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