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In the given figure, if x + y = w+z, then prove that AOB is a line. |
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Answer» It can be observed that, x + y + z + w = 360º (Complete angle) It is given that, x + y = z + w ∴ x + y + x + y = 360º 2(x + y) = 360º x + y = 180º Since x and y form a linear pair, AOB is a line. |
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