At a certain distance, the angle of elevation to the
top of a building is 60°. From 40 feet further back, the
angle of elevation is 45°. Find the height of the
building.

you need to show the graph

step-by-step explanation:

it is probably the graph on the bottom right.

i pretty sure it is

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6