suppose a triangle has sides a b and c and let theta be the angle opposite the side of length a if cos theta>0 what must be true

-81 -56 -27 0 81

step-by-step explanation:

i believe the answers 600m

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.