A 200-ft building cast an 80-ft shadow.What is tge height of an electric post with a 4-ft?
To find the height of the electric post, we can use a proportion by comparing the lengths of the shadow and the height of the building.
Let's set up the proportion:
Height of building / Length of shadow = Height of electric post / Length of electric post's shadow
Given:
Height of building = 200 ft
Length of building's shadow = 80 ft
Length of electric post's shadow = 4 ft
Let x be the height of the electric post.
We can now use the proportion to solve for x:
200 ft / 80 ft = x / 4 ft
To solve for x, we can cross-multiply:
80x = 200 * 4
80x = 800
Divide both sides by 80:
x = 800 / 80
x = 10 ft
Therefore, the height of the electric post is 10 ft.
200/80 = x/4
Cross multiply and solve for x.