In figure l parallel m and n is a transversal if« 1 = 40° find all the angles and check that al the corresponding angles and alternate angle are equal
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yep all corresponding angles and alternate angles are equal
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∠6 = 140° ∠6 + ∠5 = 180° ∠5 = 180° – 140° ∠5 = 40°
∠5 = ∠3 = 40° ∠3 and ∠4 is a linear pair ∠3 + ∠4 = 180° ∠4 = 180° – 40° ∠4 = 140°
∠4 and ∠6 are a pair interior angles So,
∠4 = ∠6 = 140° ∠3 = ∠7 = 40° Therefore, ∠7 = 40°
∠4 and ∠8 are a pair corresponding angles So, ∠4 = ∠8 = 140° Therefore, ∠8 = 140° Therefore, ∠1 = 40°, ∠2 = 140°, ∠3 = 40°, ∠4 = 140°, ∠5 = 40°, ∠6 = 140°, ∠7 = 40° and ∠8 = 140°