Similar Figures Notation Notes

The pair of figures is similar. Find the missing side.

• x = 1

• x = 3

• x = 9

• x = 5

The pair of figures is similar. Find the missing side.

• x = 12

• x = 3

• x = 40

• x = 4

The polygons are similar. Find x.

• x = 2

• x = 6

• x = 4 

• x = 8

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75

• 9.75

• 10

• 12

Tell whether the two figures are similar. Explain your reasoning.

• Yes, similar because they are the same shape and side lengths are proportional.

• No, not similar because they are the same shape, but side lengths are not proportional.

• Yes, same shape

• No, different sizes

The pair of figures is similar. Find the missing side.

• x = 9

• x = 28

• x = 7

• x = 63

As it relates to geometry, what does it mean for figures to be similar?

• corresponding sides are proportional and corresponding angles are congruent

• corresponding sides and angles are congruent

• angles are similar, and side lengths are the same, producing a figure that looks very close to another one.

• neither sides or angles are congruent

• F

• G

• H

• J

• F

• G

• H

• J

If two figures are similar, the corresponding sides are (a)   .

• equal

• congruent

• proportional

• none of these