In a trapezium-sh

Given

Let length of first parallel side X

Length of other parallel side is 2X

Area of trapezium= 9450 m2

Let Height (h) =84 m

We know that area of trapezium is × (sum of parallel sides) × height

Therefore Area of trapezium is × (X + 2X) × 84 =9450 cm2. × (X + 2X) × 84 =9450

(3X) × 42 =9450

126X = 9450

2X + 6 = = 75

X = 17

... Length of the parallel sides is X=75 m and 2X = 150 m.

Therefore length of the longest is 150 m.

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