In the figure below, line AD is parallel to line Hj and line GK is parallel to line CF.

answer: the area of the parallelogram below is 42 square meters.

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the answer is 1030 it's very simple math.

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.