- Sat Dec 04, 2010 7:10 pm
- Forum: Geometry
- Topic: How to find the area of a cross section of a cube.
- Replies:
**1** - Views:
**4306**

Hi, Let us think of a cube of butter and cut it, not straight down as a normal human being would, but for some mathematical reason across. We have two wedges. We are here concerned with the area of the larger face of the wedge, are we not? The dimensions of this face is 8 by the diagonal of the cube...

- Sat Dec 04, 2010 6:08 pm
- Forum: Geometry
- Topic: Finding Missing Angles of Parallelogram: What is x and y?
- Replies:
**3** - Views:
**18909**

Hi guys, I know this is a very late review, but I cannot figure how y became 55 either way you solve the equation ( the original and the suggested) y is 60 and not 55 checking your original equation: (2y - 5) + (3x + 20) = 180 original (2*60 - 5) + (3 *15 + 20) = 120 - 5 + 45 + 20 =115 + 65 = 180 :l...