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The lengths of the parallel sides of a t...

The lengths of the parallel sides of a trapeziúm are 30 centimetres, 10 centimetres and the distance between them is 20 centimetres. What is its area?

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Area of trapezium`=1/2 h(A B+B D)` Parallel sides as `A B` and `B D` and distance between them as `h` `Area =1/2 xx 20(30+10) =1/2 xx 20 xx 40=400 sq.cm`
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