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  • State the property that is used in each of the following statements? If angle 4 + angle 5 = 180 degree then, a is parallel b.

1.State the property that is used in each of the following statements.

If  \angle 4+\angle 5= 180^{o}, then a\parallel b.      

   

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The property used here is 'Interior angles on the same side of the transversal are a pair of supplementary angles'. They are formed when a transversal intersects 2 parallel lines. A pair of supplementary angles always sums upto 180.

Posted by

Devendra Khairwa

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