Changing Scales in Scale Drawings

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Changing the Scale Drawing of a Swimming Pool.

Here is a scale drawing of a swimming pool where 1 cm represents 1 m.

(1). How long and how wide is the actual swimming pool? 

(2). Will a scale drawing where 1 cm represents 2 m be larger or smaller than this drawing?

(3). Make a scale drawing of the swimming pool where 1 cm represents 2 m.

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Finding Corresponding Parts of Scaled Copies.

Triangle  is a scaled copy of triangle . For each of the following parts of triangle , identify the corresponding part of triangle .

(1). angle  = ?

(2). angle = ?

(3). segment = ?

(4). segment = ?

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More Practice on Scaled & Actual Copies.

Interact with the applet below and answer the questions that follow.

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A map of a park has a scale of 1 inch to 1,000 feet. Another map of the same park has a scale of 1 inch to 500 feet. Which map is larger? Explain or show your reasoning. 

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Quadrilateral Q is a scaled copy of Quadrilateral P created with a scale factor of 3.

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If a student uses a ruler like this to measure the length of their foot, which choices would be appropriate measurements? Select all that apply. Explain your reasoning.