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Understanding Quadrilaterals
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07/08/2021 10:51 am
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Explain how this figure is a trapezium. Which of its two sides are parallel?
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07/08/2021 10:55 am
When a transversal line intersects two lines in such a way that the sum of the adjacent angles on the same side of transversal is 180° then the lines are parallel to each other. Here,
∠M + ∠L = 100° + 80° = 180°
Thus, MN || LK
As the quadrilateral KLMN has one pair of parallel line therefore it is a trapezium. MN and LK are parallel lines.