# perpendicular

29 07, 2017

## What is skew? Skew lines – Geometry

By |2017-07-29T13:03:09-07:00July 29th, 2017|Math|Comments Off on 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 [...]

29 07, 2017

## What is a rhombus? Simple geometry

By |2018-04-23T16:01:48-07:00July 29th, 2017|Math|Comments Off on 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

By |2017-07-29T12:01:49-07:00July 29th, 2017|Math|Comments Off on 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

By |2017-07-29T11:41:47-07:00July 29th, 2017|Math|4 Comments

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

By |2019-11-11T07:34:46-08:00July 29th, 2017|Math|Comments Off on 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

By |2017-07-29T09:30:59-07:00July 29th, 2017|Math|Comments Off on 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 [...]

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