Question

the difference of the parallel sides of a trapezium field is 20m. it's area is 450m2 and its altitude is 15m. find the length of the parallel sides​

Answer 1

⟹x=44

Hence, length of other parallel side CD is 44 m.

Step-by-step explanation:

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Answer 2

Answer:

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Class 8

>>Maths

>>Mensuration

>>Area of Polygon

>>The area of trapezium shape

Question

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The area of trapezium shaped field is 480m

2

, the distance between two parallel sides is 15cm and one of the parallel sides is 20m. Find the other parallel side.

Medium

Solution

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Correct option is

A

44m

Let ABCD be a trapezium with parallel sides AB and CD

Let AB=20 . (Given) and CD=x

A(□ABCD)=480 m

2

,height(h)=15 m (Given)

We know that, A(□ABCD)=

2

(AB+CD)

×h

⟹480=

2

20+x

×15

⟹

15

2×480

=20+x

⟹64=20+x

⟹x=44

Hence, length of other parallel side CD is 44 m.