HORIZONTAL and

VERTICAL LINES

Parallel lines all go in the same direction

Perpendicular lines meet at 90º

When the ball is put on a Horizontal surface it does not roll off

If the surface is tilted and is not horizontal the ball will roll off

The students books stay on the Horizontal desk

..

The three paper clips and the pen lie on the horizontal surface.They are all horizontal

The three pen are lying on a horizontal table and are parallel to each other

The blades of the scissors are horizontal but not parallel

LINES THAT ARE HORIZONTAL MAY OR MAY NOT BE PARALLEL

The four rods are VERTICAL and are also PARALLEL

ALL VERTICAL LINES ARE PARALLEL

THE THREE BLACK RODS ARE HORIZONTAL .THEY ALL LIE ON THE HORIZONTAL PLANE

THE RED ROD IS VERTICAL

The red rod meets each of the black rods at a right angle

Looking down onto the table

horizontal edges Draw the cuboid and put arrows to any other horizontal edges

Vertical edges Draw arrows to any more vertical edges

Hidden edges

Horizontal planes

Vertical plane

are parallel

Not parallel

Vertical planes

parallel

All horizontal planes are parallel

Vrertical planes may or may not be parallel

This plane is neither horizontal nor vertical It is a diagonal plane

Parallel [planes

PARALLEL PLANES