Scale Drawing - Similar Figures

Triangle KLM and triangle PQR are similar.

What is the value of x?

The two parallelograms are similar.

Which of the following is closest to the value of x?

• 10.2 

• 8.9

• 7.2

• 9.6

Teresa is building a scale model of the JPMorgan Chase Tower in Houston. In her scale model, 1.5 inches represents 61 meters. Since the actual building is 305 meter tall, what height should Teresa build the model?

• 10.5 in

• 9 in

• 5 in

• 7.5 in

Louie is building a scale model of an airplane, using a scale of 2 inches = 25 feet. If the airplane is 155 feet long, what is the length of the model?

• 6.2 in

• 15.3 in

• 8.6 in

• 12.4 in

Triangle ABC is similar to triangle MNP.

What is the value of x?

• 9

• 5

• 6

• 3

In the diagram below, trapezoid FGHJ is similar to trapezoid QRST. 

Which proportion can be used to find the value of n?

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• 
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A flagpole is 1 in.= 4 ft. If the pole measures 12 inches, how tall is the actual pole?

• 16 feet
• 3 feet
• 48 feet
• 9 feet

Scale is 1cm = 8km. Hatboro and Smithville are 24cm apart on the map, how far apart are they?

• 87 km
• 216 km 
• 33 km
• 192 km

The Polar Express movie is $13 and it will be on sale for $9.What is the percent of change of the movie?

• 15%

• 10%

• 31%

• 32%

Mr Ritu had 27 students in his class last year and this year he has 30 students in his math class. What is the percent of change?

• 24%

• 20%

• 11%

• 50%