solving proportions/similar figures

Front

What must be true about the sides of similar figures?

Back

Sides in similar figures must be proportional.

Front

Solve for x: 3/5 = x/10

Back

x = 6

Front

Solve for x: 4/x = 2/8

Back

x = 16

Front

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

Back

Corresponding angles are equal.

Front

What are matching sides in similar figures called?

Back

Corresponding Sides

Front

If the ratio of the sides of two similar triangles is 2:3, what is the ratio of their areas?

Back

The ratio of their areas is 4:9.

Front

If triangle ABC is similar to triangle DEF, and the length of side AB is 4 cm and side DE is 6 cm, what is the scale factor?

Back

The scale factor is 2:3.

Front

Solve for x: 5/x = 15/9

Back

x = 3.

Front

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

Back

The ratio of their perimeters is equal to the ratio of their corresponding sides.

Front

If two similar figures have a scale factor of 1:4, how does this affect their corresponding heights?

Back

The corresponding heights will also have a ratio of 1:4.