Similar Triangles

Front

Two objects that are the same shape but not the same size are _______.

Back

Similar

Front

Choose the similarity statement for the triangles: ΔMNL, ΔOPQ, ΔNOM, ΔPQL, ΔLMN, ΔPQO.

Back

ΔLMN ∼ ΔPQO

Front

Sides in similar figures must be proportional. True or False?

Back

True

Front

Find side length X if the corresponding side in the other triangle is 20 and the ratio of similarity is 3:4.

Back

15

Front

Back

Front

What is the definition of similar triangles?

Back

Triangles that have the same shape but may have different sizes, with corresponding angles equal and corresponding sides proportional.

Front

If two triangles are similar, what can be said about their corresponding angles?

Back

Their corresponding angles are equal.

Front

If triangle ABC is similar to triangle DEF, and the length of side AB is 6 and side DE is 9, what is the ratio of their sides?

Back

The ratio of their sides is 6:9 or 2:3.

Front

What is the scale factor if triangle GHI is similar to triangle JKL and the lengths of corresponding sides are 4 and 10?

Back

The scale factor is 4:10 or 2:5.

Front

If the area of triangle MNO is 36 square units and it is similar to triangle PQR with a scale factor of 2, what is the area of triangle PQR?

Back

The area of triangle PQR is 144 square units.