IM 8th Grade Unit 2 Review

Front

What are shapes that have proportional sides and congruent angles called?

Back

Similar shapes.

Front

What are the corresponding parts of similar figures?

Back

The sides and angles that are in the same relative position in different figures.

Front

What condition is sufficient to prove that two triangles are similar?

Back

Two corresponding angles are equal.

Front

How can you determine if two figures are similar?

Back

By checking if their corresponding angles are equal and their sides are proportional.

Front

If two triangles have one angle equal and the sides around that angle are in proportion, what can be concluded?

Back

The triangles are similar.

Front

What is the definition of similar figures?

Back

Figures that have the same shape but may differ in size.

Front

If triangle ABC is similar to triangle DEF, what can be said about their corresponding angles?

Back

Angle A is equal to angle D, angle B is equal to angle E, and angle C is equal to angle F.

Front

What is the ratio of the lengths of corresponding sides in similar figures?

Back

The ratio is constant and is called the scale factor.

Front

If two triangles are similar and the length of one side of the first triangle is 4 cm and the corresponding side of the second triangle is 8 cm, what is the scale factor?

Back

The scale factor is 2.

Front

What is the relationship between the areas of two similar figures?

Back

The ratio of their areas is the square of the ratio of their corresponding side lengths.