Hi. So I need help with some math questions. I've asked my
friends but they're kind of stuck too.
1.http://s1295.photobucket.com/user/chloe ... 5.png.html It is
supposed to be a cube that is sticking out of the ground. We
were given: The ground coincides with the x,y-plane and that the
y-axis is supposed to point West and the x-axis North A =
(12.9258, 31.0732, 8.8878) and C = (2.1003, 4.5653, 17.4866) B
and D are at equal height above the ground And all these numbers
are measurements in meters  So I've managed to find the other
points:     But I still cannot figure out how to determine the
volume of the cube above and below the ground. At first i
thought the volume of cube above was split into two parts, a
rectangle and a triangle, but then I thought it could be a
trapezoid? I've tried using both formulas, but I still cant seem
to wrap my head around it. I've found the volume of the total
cube to be 11471.54017m^3. Using the formula for the volume of a
trapezoid i ended up with a value much larger than the