Similar Triangles

Front

What are matching angles in similar triangles called?

Back

Corresponding Angles

Front

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

Back

True

Front

True or False: All angles in similar figures are congruent.

Back

True

Front

If two shapes are similar, what can we say about their corresponding sides?

Back

They are proportional.

Front

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

Back

The ratio is constant.

Front

If triangle ABC is similar to triangle DEF, and the length of AB is 4 cm and DE is 8 cm, what is the ratio of their sides?

Back

1:2

Front

If two triangles have angles measuring 30°, 60°, and 90°, are they similar?

Back

Yes, they are similar because they have the same angle measures.

Front

What is the relationship between the areas of two similar triangles with a ratio of sides of 1:3?

Back

The ratio of their areas is 1:9.

Front

If triangle XYZ is similar to triangle PQR, and the length of XY is 5 cm and PQ is 10 cm, what is the length of YZ if PR is 6 cm?

Back

YZ = 3 cm.

Front

What is the definition of similar triangles?

Back

Triangles that have the same shape but not necessarily the same size.