Congruency & Lines of Symmetry

Front

What does it mean for two figures to be congruent?

Back

Two figures are congruent if they have the same shape and size, but may be in different positions or orientations.

Front

How many lines of symmetry does a square have?

Back

A square has 4 lines of symmetry.

Front

What is a line of symmetry?

Back

A line of symmetry is an imaginary line that divides a shape into two identical halves that are mirror images of each other.

Front

How many lines of symmetry does a circle have?

Back

A circle has an infinite number of lines of symmetry.

Front

Which shapes are always congruent?

Back

Shapes that are identical in size and shape, such as two squares with the same side length.

Front

What is the relationship between congruent sides in a triangle?

Back

In an isosceles triangle, the two sides that are equal in length are called congruent sides.

Front

How can you determine if two shapes are congruent?

Back

You can determine if two shapes are congruent by checking if you can overlay one shape on top of the other without any gaps or overlaps.

Front

What is the number of lines of symmetry in a rectangle?

Back

A rectangle has 2 lines of symmetry.

Front

What does it mean if a shape has no lines of symmetry?

Back

It means that there is no line that can divide the shape into two identical halves.

Front

Can two shapes be congruent if they are different colors?

Back

Yes, color does not affect congruency; two shapes can be congruent regardless of their color.