Answer:
9 ft
Step-by-step explanation:
Let's begin with the formula for the volume of a square pyramid. If s is the base length, then the area of the base is s^2. The volume of the pyramid is then V = (1/3)(base area)(height). We know the volume and the base length (s), and want to find the height. Solving V = (1/3)(base area)(height)
for height, we get:
3V = (base area)(height), or
3V
---------------- = height
base area
Substituting 75 ft^3 for V and (5 ft)^2 for base area, we get:
3(75 ft^3) 9 ft
height = ------------------ = ----------------- = 9 ft
25 ft^2 1
(54.3+56.1+n)/3 = 55
54.3+56.1+n = 165
54.6 = n
Answer:
Shouldn't there be a picture if we're told to reference the model?
You probably just have to make sure all the sides are the same length. For example, you would have to make sure that the length and width are 5 inches exactly. Just a guess.
