NCERT - Mathematics

Book: NCERT - Mathematics

Chapter: 3. Understanding Quadrilaterals

Subject: Maths - Class 8th

Q. No. 10 of Exercises 3.3

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

We know that if a transversal line intersects two given lines in such a way that the sum of the measures of the angles on the same side of transversal is 180o, then the given two lines are parallel to each other.


NML + MLK = 180°

Hence, NM||LK

As quadrilateral KLMN has a pair of parallel lines, therefore, it is a trapezium


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