C6 Review Similarity

Front

What happens when a dilation has a scale factor greater than one?

Back

The dilation is an enlargement.

Front

What is the scale factor of rectangle WXYZ to rectangle QRST if the perimeter of QRST is 54 cm and the perimeter of WXYZ is 36 cm?

Back

Front

If two figures are similar, what can be said about their corresponding sides?

Back

The corresponding sides are proportional.

Front

What is the similarity statement for the triangles ΔLMN and ΔPQO?

Back

ΔLMN ∼ ΔPQO.

Front

If two similar figures have a side length ratio of 3:5, what is the ratio of their areas?

Back

Front

What is the definition of similar figures?

Back

Similar figures have the same shape but may differ in size; their corresponding angles are equal and corresponding sides are proportional.

Front

How do you find the scale factor between two similar triangles?

Back

Divide the length of a side of one triangle by the length of the corresponding side of the other triangle.

Front

If triangle ABC is similar to triangle DEF, and the length of side AB is 6 cm and side DE is 9 cm, what is the scale factor from triangle ABC to triangle DEF?

Back

Front

What is the relationship between the angles of similar triangles?

Back

The corresponding angles of similar triangles are equal.

Front

If the scale factor of two similar figures is 4:1, what is the ratio of their perimeters?

Back

The ratio of their perimeters is also 4:1.