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One of the parallel sides of a trapezium is twice the other .If the distance between th is 5 cm and the area is 45 cm sq, find the parallel sides

Posted by Sundram Jha 5 years ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 5 years ago

Area of a trapezium = 1/2×height (sum of parallel sides
given:the other parallel side is double the other. height is5cm.Area is 45 cm square.
let the parallel sides be x and 2x
1/2×5 (x+2x)=45
5 (x+2x)=45×2
5x+10x=90
15x=90
x=90/15
x=6
2x=12
so the parallel sides are 6cm and 12cm.

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