Shrinking and Scaling

What is the scale factor if the triangle on the left is the original?

• 2
• 3/2
• 2/3
• 1/2

If the scale factor is less than one, the new figure will be

• an enlargement
• a reduction
• a scale factor
• bigger

If the scale factor is greater than one, the new figure will be

• a reduction
• an enlargement
• a scale
• not proportional

What is the scale factor from ΔDEF to ΔABC?

• 1/2
• 7/3
• 2
• 10/3

What is the scale factor from ABCD to MNOP?

• 2/3
• 3/2
• 2
• 3

Robbie made a scale drawing of a neighborhood park. A soccer field in the park is 14 inches long in the drawing. The actual field is 98 yards long. What is the scale of the drawing?1 inch = _ yards

• 1372
• 5
• 14
• 7

Are these two rectangles similar?

• Yes, there ratios are the same

• no, there ratios are not equivalent

Sides that are in the same position are called

• Corresponding Sides
• Corresponding Angles
• The Same
• Congruent Sides

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

• x = 20
• x = 12
• x = 5
• x = 4

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

• 144 feet
• 72 feet
• 36 feet