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EXAMPLE 2 Finding a Dimension on a Scale Model White House There is a scale model of the White House in Tobu World Square in Japan. The scale used for.

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Presentation on theme: "EXAMPLE 2 Finding a Dimension on a Scale Model White House There is a scale model of the White House in Tobu World Square in Japan. The scale used for."— Presentation transcript:

1 EXAMPLE 2 Finding a Dimension on a Scale Model White House There is a scale model of the White House in Tobu World Square in Japan. The scale used for the model is 1 : 25. The height of the main building of the White House is 85 feet. Find this height on the model.

2 EXAMPLE 2 1 25 h 85 = 1 85 = 25 h 3.4 = h scale model building Cross products property Divide each side by 25. The height of the main building of the model is 3.4 feet. ANSWER SOLUTION Write and solve a proportion to find the height, h, of the main building of the model of the White House. Finding a Dimension on a Scale Model

3 GUIDED PRACTICE for Example 2 2. Eiffel Tower The model of the Eiffel Tower in Tobu World Square is 12 meters high. Use the scale factor of 1 : 25 in Example 2 to estimate the height of the actual Eiffel Tower. about 300 m. ANSWER

4 GUIDED PRACTICE 3. Carpenter Ants A museum of natural history is making a scale model of a carpenter ant. The scale used is 12.5 cm : 1 mm. If the actual length of the ant is 6.4 mm, what is the length of the model? 80 cm. ANSWER for Example 2

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