# parrallel and pendicular line

parrallel and pendicular line

## Perpendicular

It just means at right angles (90°) to.

The red line is perpendicular to the blue line:

Here also:

(The little box drawn in the corner, means “at right angles”, so we didn’t really need to also show that it was 90°, but we just wanted to!)

Try for yourself:

## Parallel

Lines are parallel if they are always the same distance apart (called “equidistant”), and will never meet. (They also point in the same direction). Just remember:

### Always the same distance apart and never touching.

The red line and blue line are parallel in both these examples:

 Example 1 Example 2

Try it yourself:

## Perpendicular to Parallel

Question: What is the difference between perpendicular and parallel?
Answer: 90 degrees (a right angle)

That’s right, when we rotate a perpendicular line by 90° it becomes parallel (but not if it touches!)

 Perpendicular … Rotate One Line 90° … Parallel !

Likewise, parallel lines become perpendicular when one line is rotated 90°.

## Parallel Curves

Curves can also be parallel when they keep the same distance apart (called “equidistant”), like railroad tracks.

The red curve is parallel to the blue curve in both these cases:

## Parallel Surfaces

Surfaces can also be parallel, like this:

## Lines and Planes

Advanced Topic: You can also learn about Parallel and Perpendicular Lines and Planes

### An Interior Angle is an angle inside a shape

Another example:

Note: When we add up the Interior Angle and Exterior Angle we get a straight line, 180°. (See Supplementary Angles

exterior angle

The Exterior Angle is the angle between any side of a shape, and a line extended from the next side.

Another example:

When we add up the Interior Angle and Exterior Angle we get a straight line 180°. They are “Supplementary Angles”.

## 7 thoughts on “parrallel and pendicular line”

1. Pingback: มาเด้คอลลาเจน

2. Pingback: granice.info

3. Pingback: www.pasarqq2.site

4. Pingback: tips kesehatan

5. Pingback: instagram search

6. Pingback: metpall official blog

7. Pingback: parisqq