Find The Other Parallel Side.

The area of a trapezium shaped field is 480 m2, the height is 15 m and one of the parallel side is 20 m. Find the other parallel side.

  1. 44 m
  2. 20 m
  3. 84 m
  4. 150 m
mohitverma Default Asked on 26th July 2015 in Maths.
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1 Answer(s)

Answer: (1) 44 m
Explanation:-
Given-
The parallel side of a trapezium = 20 m
Let the another parallel side of a trapezium = X m
Height of a trapezium = 15 m
Area of a trapezium = 480 m square
Formula-
Area of a trapezium = h (sum of parallel sides)/2
Where, h = height of a trapezium.
Then, 480 = 15 x (20 + X)/2
480  x 2 = 15 x 20 + 15 X
15 X = 960 – 300
X = 660/15
X = 44 m
Hence, the other parallel side of a trapezium is 44 m.

Anurag Mishra Professor Answered on 27th July 2015.
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