2/5 Scale Factor Progress Check (STA) - Alexandra Jones | Library

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The triangles below are similar. 

What is the scale factor of this reduction?_______ 
What is the measure of x? _______ 

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The figures below are similar and have a scale factor of 7. 

What is the measure of one side of the enlarged figure? _______ 
What is the perimeter of the scaled copy? _______ 

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The figures are similar. 


What is the measure of the missing side?_______ 
Solve for the area of each figure. 
How many times greater is the area of the enlarged figure? _______ 

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The local school district has made a scale model of the campus of Engels Middle School including a proposed new building. The scale of the model is 1 inch = 3 feet. An existing gymnasium is 8 inches tall in the model. 

How tall is the actual gymnasium? _______

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Rectangle 2 is a scaled copy of Rectangle 1. Rectangle 1 has a length of  4 feet and a width of 3 feet.

Just type in the numbers!
How many times greater is the area of Rectangle 2 than Rectangle 1?_______ 
What is the scale factor? _______ 
What is the measure of C _______ and D_______ ? 

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Lisa is planning to make some upgrades to her home. A local contractor drew her a blueprint with a scale of 1 in. : 12 ft. The dimensions of her house on the scale drawing are 9 inches by 6 inches. Use the blueprint below to calculate the actual length and width of her home. 

What is the actual length?_______ feet
What is the actual width?_______ feet