GEOMETRY SLIDESHOW 2:

CONGRUENTFigures are the same SIZE

and SHAPE

Congruent NOT Congruent

not same shape

NOT Congruent

not same size

Which figures are congruent?

Did you get the following pairs?A and G D and I E and J C and H

Remember: Shapes can be congruent even if one of them has been rotated (as in A and G) or reflected (as in C and H).

SIMILAR Figures have the same

shape, but not size.

Similar Similar Similar

SIMILAR Figures have the same

shape, but not size.

MOTIONS:There are 3 different ways to

move a plane figure:

*SLIDE*FLIP*TURN

*SLIDE – Translation

*FLIP – Reflection

*TURN - Rotation

SLIDE: TRANSLATION• Moves a figure in a straight direction

FLIP: REFLECTION• gives a mirror image of a figure

TURN: ROTATION

• moves a figure about a point

A slide or translation…

moves a figure in a straight direction

A slide or translation…

A flip or reflection…

gives a figure its mirror image

A flip or reflection…

A turn or rotation…

moves a figure about a point

A turn or rotation…

SYMMETRY

A rectangle is a symmetric figure because it can be folded into 2 congruent halves

that fit on top of each other.

Each of your folds lie along a line of symmetry. The

rectangle has two lines of symmetry.

SYMMETRY

This W has only one line of symmetry.

W