Question

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Answer 1

Answer:

ratio of angle 1 to angle 2 is 3:2

angle 1 + angle 2 is 180°

let. it's common part be X

then 3x + 2x=5x =180

=>X=180/5=36

=> angle 1 is 3x =36×3 = 108°

=> angle 2 is 2x = 36×2 = 72°

as ∠ 1 = ∠ 5, ∠ 2 = ∠ 6, ∠ 4 = ∠ 8 , ∠ 3 = ∠ 7 , ∠ 1 = ∠ 3 , ∠ 5 = ∠ 7 , ∠ 4 = ∠ 6

so ∠ 1 = ∠ 3 = ∠ 5 = ∠ 7 = 108°

and ∠ 2 = ∠ 4 = ∠6 = ∠ 8 = 72°

Step-by-step explanation:

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