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Find the size of the angles marked with a letter​
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Find the size of the angles marked with a letter​

Find the size of the angles marked with a letter​-example-1
User Dave Sanders
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alternate interior angles on parallel lines via the parallel postulate gives you the angle supplementary to x = 120°, so x = 60°. alternate interior angles on 70° via the parallel postulate gives you y = 70°
User Raas Masood
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