Scale Factor to Shapes

What is the scale factor from the small shape to the big shape?

• 1/2

• 7/3

• 2

• 10/3

If the scale factor is 4, what is the measurement of x?

• 20 m

• 24 m

• 16 m

• 4 m

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

A scale drawing that measures 8 units wide and an original that measures 4 units wide has a scale factor of...

• 2:1

• 8:1

• bigger

• 1:2

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

what is the length of x?

• 9mm

• 4mm

• 4/9mm

• 36mm

In the figure above, a dilation from A to A' has occurred. What is the scale factor?

Mathematical Equivalence

ON

Find missing side

• 5

• 7

• 9

• 11

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

• x = 12

• x = 3

• x = 40

• x = 4

What does similar mean?

• When two figures have the same Rate of change

• Same size

• Same shape

• When two shapes have the same Scale FactorΔ