The length of a rectangular field is 6m less than twice the width. the perimeter is 312 m. find the length of the field

A) L +6 = 2W  OR

A) L +6 -2W = 0

B) 2L + 2W = 312  Adding A and B

3L +6 = 312

3L = 306

Length = 102

A) 102 +6 = 2W

108 = 2W

Width = 54

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.