Scale Factors and Scale Drawings

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 equal to 1, the copy is ________ the original.

• the same as

• smaller than

• bigger than

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

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

All angles in similar figures are congruent.  

• True
• False

The distance between two cities on a map is 4.125 inches.  Find the actual distance if the scale on the map is 2 inches = 40 miles.

• 165 miles
• 50 miles
• 82.5 miles
• 41.25 miles

Amanda made a scale drawing of a square garden, which has a side length of 25 feet. She used the scale 2 inches = 5 feet.

What will be the area of the scale drawing?

• 10 in²
• 25 in²
• 100 in²
• 484 in²

On a map, Memphis, Tennessee, and Jackson, Mississippi, are 5 inches apart. The distance between the cities is actually 210 miles.

What scale was used to create the map?

• 42 inches = 1 mile
• 1 inch = 42 miles
• 40 inches = 1 mile
• 
  1 inch = 40 miles

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

• 1/2
• 7/3
• 2/1
• 10/3

What is the scale factor from the large triangle to the small triangle?

• 1/2 or .5

• 2/3 or .66

• 3/4 or .75

• 2

What is the scale factor from ABCD to MNOP?

• 2/3 or .66

• 3/2 or 1.5

• 2
• 3