Proportional Figures

When you multiply by a scale factor less than 1, it will result in ...

• a reduction.

• the same size.

• an enlargement.

• a different shape.

What is the measure of angle F?

• 36^o

• 63^o

• 81^o

• 99^o

Which scale factor is an example of a reduction?

• k = 1/2

• k = 1

• k = 3/2

• k = 2.5

A figure that has been dilated has corresponding sides that are

• propotional

• congruent

Which transformation creates similar, but not congruent, figures?

• Rotations

• Dilations

• Reflections

• Translation

Which scale factor is an example of an enlargement?

• k = 1/2

• k = 1

• k = 3/2

• k = 0.75

Are they similar?

• Yes, the angles are congruent and the side lengths are proportional.

• No, the angles are congruent, but the side lengths are not proportional.

• No, the side lengths are proportional, but the angles are not congruent.

• No, the side lengths are not proportional, nor are the angles congruent.

Are they similar?

• Yes, the angles are congruent and the side lengths are proportional.

• No, the angles are congruent, but the side lengths are not proportional.

• No, the side lengths are proportional, but the angles are not congruent.

• No, the side lengths are not proportional, nor are the angles congruent.

Similar figures have the same general shape.

• Always true

• Sometimes true

• Never true

In similar figures, the lengths of corresponding sides are proportional.

• Always true

• Sometimes true

• Never true