1.

In a Trapezium , sum of two parallel sides is 30 cm and distance between them is 5 cm . Find its area.150 cm²100 cm²75 cm²50 cm²​

Answer»

LET the lengths of the two parallel sides of the trapezium be X and 2 X cm respectively.

We know that

Area of the trapezium=  21

​

 (SUM of parallel sides) × (DISTANCE between them)

∴180= 21

​

(x+2x)×12

or 180×2=3x×12

or 180×2=3x×12

or 36x=360

or x=10

∴ The sides of the trapezium are 10 cm and 20 cm respectively.


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