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Square feet of a 8' x 8' x 8' triangle I came up with 8' x 8' 64 divided by 2 32 square feet?
Wiki User
∙ 12y ago
1/2 base X height....
In a right triangle the base and height are the two short sides
In your case, base is 8, but to find height is a bit harder....
Draw your triangle and drop a line from the top point directly to the base. To calculate this line take one of the smaller right triangles and use it with the Pythagorean Theorem (see http://en.wikipedia.org/wiki/Pythagorean_theorem )... "The square on the hypotenuse is equal to the sum of the squares on the other two sides."
In your case we know the hypotenuse (8) and one side (4) and we need the other side (the missing side is the height)...
82 = 42 X height2
64 = 16 X height2
64-16 = height2
48 = height2
Square root of 48 = height
6.93 = height
Then plug this back in to
1/2 base X height
1/2 X 8 X 6.93 = 27.72
Wiki User
∙ 12y ago
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