Introduction to Scale Factors - Math Lab

What defines similar figures?

• They have no proportional sides.

• They have different angles.

• They have the same shape and different sizes.

• They have different shapes.

What is the scale factor when the coordinates change from -4 to -2?

• 3

• 1/4

• 2

• 1/2

If triangle PQR has a scale factor of 2, what happens to its size?

• It shrinks.

• It stays the same.

• It doubles in size.

• It triples in size.

How do you determine if trapezoid JKLM is similar to trapezoid J'K'L'M'?

• By checking if their angles are different.

• By finding a repeating scale factor.

• By measuring their areas.

• By counting their sides.

What is the scale factor if the coordinates change from -2 to 8?

• 3

• 1/2

• 2

• 1/4