A piece of art is in the shape of an equilateral triangle with sides of 18 in. Find the length of the altitude in simplified radical form.

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation:

b

step-by-step explanation:

the answer is:

mean: 6

mad: 2.14

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.