Scale Drawings

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

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

Which triangle is similar to the above triangle ?

• A

• B

• C

• D

Pedro and his friends are visiting chocolate shops in Fairview. They take a cab from one chocolate shop to another. On a map, the two are separated by 3 centimeters. If the scale of the map is 1 centimeter = 2 kilometers, then what is the actual distance between the two chocolate shops?
____ = ____

•  

• 1.5 kilometers

• 6 kilometers

• 3 kilometers

What is a scale in the context of scaled drawings?

• The ratio of units of the drawing over the units of the actual object

• The ratio of units of the actual object over the units of the drawing

• The ratio of units of the drawing over the units of a different drawing

• The ratio of units of the actual object over the units of a different object

If Mrs. Ramiz creates a scale drawing of a house using the scale 2in:5ft, the actual height of the house is _ feet.

• 8.5

• 17

• 42.5

• 21.25

Select all of the true statements about the scaled copies in the picture.

• Segment EF is twice as long as segment AB.

• Segment CD is twice as long as segment FG.

• The measure of angle HEF is twice the measure of angle DAB.

• The length of segment EH is 16 units.

• The area of EFGH is twice the area of ABCD.

Use the provided scale factor to draw a scaled copy of the figure on the grid.

What is a scaled copy?

• A copy of a figure where every side length is multiplied by the same number

• A copy of a figure where every side length is divided by the same number

• A copy of a figure where every side length is added by the same number

• A copy of a figure where every side length is subtracted by the same number

What is a scale factor?

• The number that all original lengths are divided by to create the scaled copy

• The number that all original lengths are multiplied by to create the scaled copy

• The number that all original lengths are added by to create the scaled copy

• The number that all original lengths are subtracted by to create the scaled copy