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In the diagram, the measures of ∠1, ∠4, and ∠5 are 120°. The measure of ∠7 is 60°. Are lines c and d parallel

In the diagram, the measures of ∠1, ∠4, and ∠5 are 120°. The measure of ∠7 is 60°. Are-example-1

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Answer:

yes

Explanation:

both lunes c and d are parrallel

line c =

∠1 + ∠4 = 240°

360 -240= 120 °

120/2 = 60°

as angle 2 and 3 are opposite each other they will have the same angle { 60°}

line d =

∠5 is 120° , ∠5 and ∠8 are opposites so ∠8 is equal to 120°

120 ×2 = 240

360-240=120°

120° / 2 = 60°

so ∠7 and ∠6 are 60°

both lines are parallel as the angles are corresponding

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