SOLUTION: I have no book. Find the volume, to the nearsest tenth, of a pyramid that is 6 feet tall and whose base is an equilateral triangle with sides each 10 feet long. Please help

Algebra ->  Volume -> SOLUTION: I have no book. Find the volume, to the nearsest tenth, of a pyramid that is 6 feet tall and whose base is an equilateral triangle with sides each 10 feet long. Please help       Log On


   

Question 161608: I have no book.
Find the volume, to the nearsest tenth, of a pyramid that is 6 feet tall and whose base is an equilateral triangle with sides each 10 feet long.
Please help
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
V=BH/3
HEIGHT OF TRIANGLE BASE IS:
5^2+X^2=10^2
X^2=100-25
X^2=75
X=8.66 FOR THE HEIGHT
AREA OF BASE=BH/2
AREA=10*8.66/2=86.6/2
AREA=43.3
V=43.3*6/3
V=86.6 FT^3
V=50*6/2
V=300/2
V=150FT^3.