Question

(1) The area of a trapezium is 34 cm and the length of one of the parallel sides is 10 cm and it's height is 4 cm.
Find the length of the other parallel side
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Answer 1

let the required other side be x cm .

area of trapezium=1/2xsum of parallel sides x height

34=1/2 x 10+x x4

10+x=17

x=7

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Answer 2

Area of Trapezium

= 1 /2×Sum of Parallel Sides ×

Distance between parallel sides

⇒34= 21 ×(10+x)×4

⇒x=7

Length of other parallel side of trapezium is 7 cm