# Geometry - Horizontal, Vertical, Perpendicular, Parallel Lines

## Horizontal Lines

A horizontal line is a straight line that runs from left to right.

#### Practice Question 1

Can you identify the horizontal line in the shape below:

The horizontal lines are:
A to B (Also written as AB)
C to D (Also written as CD)

#### Practice Question 2

Can you identify the horizontal line in the complex shape below:

The horizontal lines are:
AB
CD
FG
HJ

## Vertical Lines

A vertical line is a straight line that runs from top to bottom.

#### Practice Question 3

Can you identify the vertical line in the shape below:

The vertical lines are:
AC
BD

#### Practice Question 4

Can you identify the vertical line in the complex shape below:

The vertical lines are:
AC
BD
EF
BG

## Perpendicular Lines

Perpendicular line are two straight lines that meet at a right angle or at 90°.

#### Practice Question 5

Can you identify the perpendicular lines in the shape below:

The Perpendicular lines are:
Line XY is perpendicular to line AB

#### Practice Question 6

Can you identify the perpendicular lines in the complex shape below:

Line AD is perpendicular to line BC

## Parallel Lines

Parallel line are two straight lines which do not meet or intersect.

#### Practice Question 7

Are the lines below parallel to each other?

Line AB is Parallel to line CD

#### Practice Question 8

Grade 5 pupils - Mary, Susan, Mark and John, were asked by they teacher to draw parallel lines on a paper. Which pupils drew parallel lines?

Susan and Mark

- Mary drew perpendicular lines as they meet at 90°
- John drew lines that would meet. To prove this, extend the lines as shown. The lines would meet at point t, hence they are not parallel to each other.