1/25 Day 3: Scale CopieS - Alexandra Jones | Library

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What is the scale factor from Figure A to Figure B? _______ 

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Are the triangles below similar? _______ 
What is the scale factor if the second triangle is a scaled copy of the first? _______ 

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Are these figures similar? Use the follow ratios from the corresponding sides to prove if they are proportional. 40/10 and 56/14
 
Are these ratios proportional? _______ 
Using the scale factor, find the value of x. _______ 

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Use the graph below to answer the following questions. 

What is the slope of the line? _______ 
Are the points (2,1) and (8,4) proportional? _______ 
Which of the following points could also be on the line? 
(40, 20) _______ 
(19, 11) _______ 
(24, 12) _______ 

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What is the value of x? _______ 
What is the perimeter of the first triangle? _______ 

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Figure B is a scaled copy of Figure A.

If figure A is half the size of figure B, what would be the value of x? _______

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Match each polygon on the left to it's scale copy on the right (click & drag the one on the left side to match the one on the right).

Draggable item		Corresponding Item

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Li says the larger T is a scaled image of the smaller T because the larger T is twice the height of the smaller T. Do you agree with Li? Explain why or why not in the show your work section.

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The following triangles are similar.


What is the missing side of the second  triangle? __________
What is the perimeter of the second triangle? __________

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Identify the scaled copy of o.

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What is the scale factor?

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Which of the triangles P, Q, R, and S are reductions of triangle X?

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 The following triangles are similar. 
What is the scale factor? _______ 
What is the measure of YZ? _______ 
What is the measure of XZ? _______ 
What is the perimeter of the scaled triangle? _______ 

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Create a scaled copy of the figure below in the show your work box. 