Similar Triangles

Front

What is the scale factor from one triangle to another?

Back

The scale factor is the ratio of the lengths of corresponding sides of two similar triangles.

Front

If two triangles are similar, their corresponding angles are ______.

Back

congruent.

Front

If two triangles are similar, the corresponding sides are ______________.

Back

proportional.

Front

Complete the proportion: CB / DM = AC / ?

Back

AD.

Front

What is the relationship between the sides of similar triangles?

Back

The ratios of the lengths of corresponding sides are equal.

Front

What is the scale factor if the sides of triangle ABC are 6 and the corresponding sides of triangle HGF are 1?

Back

1/6.

Front

If triangle ABC is similar to triangle DEF, and the length of side AB is 4 and side DE is 8, what is the scale factor from ABC to DEF?

Back

2.

Front

If two triangles are similar and the length of one side of the first triangle is 5 and the corresponding side of the second triangle is 10, what is the scale factor?

Back

2.

Front

What does it mean for two triangles to be similar?

Back

It means they have the same shape but may differ in size.

Front

If triangle ABC is similar to triangle XYZ, and angle A = 30°, what is the measure of angle X?

Back

30°.