Scale Factor Unit Assessment 7th (Period 6)

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

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

The actual distance between two cities is 165 miles.  Find the distance in inches if the scale on the map is 2 inches = 50 miles.

• 6.6 inches

• 5 inches

• 5.5 inches

• 4.125 inches

• 0.25

• 0.5

• 2

• 1/2

What is the correct definition of scale model?

• A drawing represents in the drawing which correspond to the measurements of the actual object by the same scale.

• To create a scaled copy, we multiply all the lengths in the original figure by the same number

  
  

• a copy of an figure where every length in the original figure is multiplied by the same number.

• A proportional 3-D figure of an object (smaller or larger).

What is the correct definition of scale factor?

• A drawing represents an actual place or object. All the measurements in the drawing correspond to the measurements of the actual object by the same scale.

• A scale tells how the measurements in a scale drawing represent the actual measurements of the object.

• The factor by which every length in an original figure is increased or deceased by the same number

  
  

What is the correct definition of similar?

• A drawing represents an actual place or object. All the measurements in the drawing correspond to the measurements of the actual object by the same scale.

• Figures of the same shape can be different sizes but angles are congruent (the same measurement).

• Answer to a multiplication problem.

What is the correct definition of corresponding?

• A drawing represents an actual place or object. All the measurements in the drawing correspond to the measurements of the actual object by the same scale.

• Answer to a division problem

• When part of an original figure matches up with the part of a copy; can be points, segments, angles of distances.