Answers

2016-02-22T19:05:13+08:00
Whats your question here?? if you are looking for volume of the the pyramidal tank, 
V=1/3 (Area of the base x Height)

first you need to get the area of the triangular base which has 3 ft on a side using formula A=1/2(BasexHeight)
get the height using pythagorean theorem

c^2=a^2+b^2

3^2=1.5^2 + b^2
9+2.25=b^2
11.25=b^2 (get the square root of both sides)
b=3.35ft

area of triangle
A=1/2 (BxH)
A= 1/2 (3ftx3.35ft)
A=1/2 (10.05 sq. ft)
A=5.025 sq ft

now the volume
V=1/3 (Area of the base x Height)
V=1/3 (5.025 sq ft x 7 ft)
V=1/3  (35.175 cu. ft)
V= 11.725 cu ft

Cheers!

0