The ratio of the sides of a triangle is 20: 19: 20. if the perimeter of the triangle is 354 inches, what are the lengths of all three sides.

20*6 - 120

20*6 = 120

19 * 6 = 114

Step-by-step explanation:

Call x the scale factor.

20x + 19x + 20x = 354       Add the left side together.

59x = 354                           Divide by 59

59x/59 = 354/59                Combine and cancel

x = 6

The lengths of the sides are

20 * 6 = 120

19 * 6 =  114

20 * 6 = 120

Total    354 Check

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.