Answer:
40 ft
Step-by-step explanation:
From the diagram attached which describes the information given, we can assume that there are two similar right angle triangles there.
To find the height of the building, use proportion of their corresponding sides.
Let height of building = x
Thus,
104/13 = x/5
Cross multiply
104*5 = x*13
520 = 13x
Divide both sides by 13 to solve for x
520/13 = 13x/13
40 = x
Height of building = x = 40 ft
