Scale Drawings and Similar Figures

The scale on a blueprint is 1 cm for every 2 meters. If the width of an arch is 5 meters, then how wide should it be drawn on the blueprints?

• 2.5 cm

• 2.5 m

• 10 cm

• 0.2 cm

A map of max’s neighborhood is shown below. If Max travels from the school to park and then to the grocery store, how many meters will he have traveled?

• 500 meters

• 1250 meters

• 6250 meters

• 1320 meters

Jeremy made a scale model of the Santa Maria, one of the ships Christopher Columbus used for his first voyage to North America. To make the model, Jeremy used a scale of 1 inch= 2.5 meters. If the actual Santa Maria was about 20 meters long, how long was the model that Jeremy made?

• 6 in

• 8 in

• 10 in

• 50 in

Which pair of triangles below is similar?

• 
• 
• 
• 

Complete each proportion.
CB / DM  =  AC / ?

• BM

• MA

• BC

• AD

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75

• 9.75

• 10

• 12

Review the picture. Find the missing side measurement in the picture using a proportion.

• w = 18 m

• w = 6 m

• w = 6 m

• w = 0.16 m

A model of a house was built using the scale 5 in:25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?

• 90 ft

• 7.5 ft 

• 4.5 ft

• 45 in

A blueprint was using a scale of 1cm = 1.5m. Find the actual length if it is 5cm on the drawing.

• 7.5

• 13.5

• 1.5

• 1.7

Change both measurements to the same unit of measure, and find the scale factor.
1 ft model of a 1 in. fossil 

• 12/1

• 6/1

• 18/1

• 24/1