Question
The lengths of a pair of parallel sides of a trapezium
are respectively 21 cm and 17 cm, and the perpendicular distance between these two sides is 11 cm. What is the area (in cm²) of the trapezium?Solution
According to the question Area of trapezium = 1/2 x sum of its parallel sides x perpendicular distance between parallel sides 1/2 x (21 + 17) x 11 cm² = (1/2 x 38 x 11) cm² = (19 x 11) cm² = 209 cm² The area of the trapezium is 209 cm².
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