What is skew? Skew lines – Geometry
These two green lines are skew to each other. Skew is a pretty cool word, and it sounds like it means something really weird, and it kind of does. It [...]
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07, 2017
29
07, 2017
What is a rhombus? Simple geometry
This is a rhombus, divided so you can figure out the area. A rhombus is a kind of quadrilateral that has two sides that are parallel to each other, and another two sides that [...]
29
07, 2017
What is a quadrilateral? Squares and rectangles
This is a quadrilateral. A quadrilateral is a flat shape, in one plane, defined by four points at the four corners. A quadrilateral has four sides. The sides can be of any length. [...]
29
07, 2017
Perpendicular lines – Simple geometry
Perpendicular lines Two lines are perpendicular if they cross at right angles. You can test this by extending the lines until they cross (if they do not cross then they are parallel). Where the [...]
29
07, 2017
What is a line? Simple geometry
A number line is infinite in both directions - definition of a line A line of points A line is made of an infinite number of points that are right next [...]
29
07, 2017
What is a cube? Simple geometry
Do you know how to do a Rubik's cube? A cube is a square moved through space, so it gets thicker. All cubes have six sides - the top, the bottom, and [...]
