Find the height of a square pyramid that has a volume of 12 cubic feet and a base length of 3 feet.
2 answers:
<span>square pyramid</span>
V=b² h/3------------ >12=9*h/3------------ >h=12/3---- >h=4
the answer is h=4 feet
Answer: 4 ft^2
Explanation:
1) Data:
a) Figure: square pyramid
b) Volume: 12 ft^3
c) base lenght: 3 ft
2) Formulas:
The formula for the volume of a pyramid is:
Volume = (1/3) * area of the base * height
The formula for the area of the base is:
area of the base = (base length)^2
3) Solution
From the volume formula: height = 3 * volume / area of the base
area of the base = (3 ft)^2 = 9 ft^2
height = 3 * 12 ft^3 / 9 ft^2 = 4 ft^2
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Step-by-step explanation:
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Interesting problem.
First - let's figure cost of each uniform at purchase.
3,000/40 = $75 each
When some uniforms were returned at $40 - there was a difference of $35 in what they paid and what they rec'd in return. ($75 - 35 = $40)
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10 hours 525$
