Printed Notes Lesson 6-3
"Similar Figures & Scale Drawings"
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Part 1 "Using Similar Figures"


1. Similar Figures = Same Shape, Diff Size
2. Indirect Measurement = Uses Similar Figures
3. EX: (try this 2) Indirect Measurement  A building 70 ft high casts a 150-ft shadow.  A nearby flagpole cast a 60-ft shadow.  Draw a diagram.  Use similar triangles to find the height of the flagpole.

 

 

 


Part 2 "Using Scale Drawings"
4. Scale Drawing = Similar Figure
5. Scale = Ratio of ...
    Drawing Distance to Real Distance
6. EX: A map has a scale of 3 centimeters = 8 kilometers.  If two cities are 5 centimeters apart on the map, what is the actual distance between the two cities to the nearest tenth of a kilometer ?