CBSE Class 8 Answered
The area of trapezium is 52cm. If the ratio of parallel sides is 7:5 and the distance between them is 18cm , find the length of parallel sides.
Asked by deepak kumar | 19 Jan, 2019, 05:02: PM
Expert Answer
Let a and b are parallel sides
Area of trapezium = (1/2)×(a+b)×h = (1/2)×(a+b)×18 = 52 cm2
(a+b) = 104/18 = 52/9 cm
since a nd b are in the ratio 7 :5 , side a = (52/9)×(7/12) = 91/27 = 3.37 cm
side b = (52/9)×(5/12) = 65/27 = 2.41 cm
Answered by Thiyagarajan K | 19 Jan, 2019, 05:19: PM
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