Scale Factor of Similar Shapes

What is the scale factor?

• 4
• .25
• 5
• 6

What is the scale factor from ABCD to MNOP?

• 2/3
• 3/2
• 2
• 3

What is the scale factor from MNOP to ABCD?

• 2/3
• 1/2
• 3/2
• 2

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

• 20 m
• 24 m
• 16 m
• 4 m

What is the scale factor from triangle ABC to triangle DEF?

• 1/2
• 7/3
• 2/1
• 10/3

If the original is 12 units and the scale factor is 1/4 what is the size of the scale drawing?

• 300
• 4.8
• 3
• 4

The basic formula for scale factor puts the ORIGINAL measurement on the ________ of a fraction.

• outside
• inside
• bottom
• top

When a scale drawing becomes larger than the original it is called a ...

• ballooner
• enlargement
• reduction
• correlation

Megan drew a scale drawing of a house and its lot. The scale she used was 1 inch = 2 feet. The backyard is 78 feet long in real life. How long is the yard in the drawing?
____ = ____

• 39 inches
• 156 inches
• 38 inches
• 157 inches

Solve the proportion.
____ = ____

• p=31.3
• p=308
• p=924
• p=532