Similarity in Geometry Flashcard

Front

What is a dilation in geometry?

Back

A transformation that changes the size of an image.

Front

Is the dilation an enlargement or reduction?

Back

Reduction.

Front

What is the property called that involves the product of the means being equal to the product of the extremes in a proportion?

Back

Means-Extremes Product Property.

Front

Are the polygons similar?

Back

Yes.

Front

What is the definition of similar polygons?

Back

Polygons that have the same shape but may have different sizes.

Front

What is the scale factor in similarity?

Back

The ratio of the lengths of corresponding sides of similar figures.

Front

How do you determine if two triangles are similar?

Back

By using AA (Angle-Angle) similarity criterion.

Front

What does it mean for two figures to be congruent?

Back

They have the same shape and size.

Front

What is the difference between similarity and congruence?

Back

Similarity involves the same shape but different sizes; congruence involves the same shape and size.

Front

What is the relationship between the angles of similar polygons?

Back

All corresponding angles are equal.