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10. Explain how this figure is a trapezium. Which of its two sides are parallel? (Fig 3.32)

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Given, \angle M+\angle L=100\degree+80\degree180\degree.

A transverse line intersects two lines such that the sum of angles on the same side of the transversal line is 180\degree.

Hence, lines KL and MN are parallel to each other.

Quadrilateral KLMN has a pair of parallel lines so it is a trapezium.

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seema garhwal

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