Chapter 6 Section 3 Similar Figures

Chapter 6, Section 3: Similar Figures and Scale Drawings Warm Up: Solve each Proportion, Round to the Nearest Tenth Where Necessary. You may use your calculators. f = 14 p = 133.3 z = 6.7 g = 3.6 2 3 = f 21 3 8 = 50 p 9 4 = 15 z 16 3 = 19 g

Similar Figures ,[object Object],[object Object],[object Object]

These Figures Are Similar The symbol ~ means “ is similar to ”. To the right, ΔABC ~ ΔXYZ.

Similar Figures Have Two Properties. ,[object Object],[object Object]

Example Problems ,[object Object],[object Object],Corresponding Sides go Together. Write the CROSS PRODUCT. (X)(24) = (18)(16), X = 12 X 18 = 16 24

Try This… ,[object Object],[object Object],Have Ms. D-H Check Your Work.

Indirect Measurements ,[object Object],[object Object]

Indirect Measurements ,[object Object],The tree is 12.5 feet tall.

REMEMBER TO KEEP YOUR RATIOS INLINE!!! THIS compared to THAT. THIS AND THAT have to be in the same ORDER every TIME .

Try This One and Draw It Yourself ,[object Object],Check your answer with Ms. D-H

Scale Drawings ,[object Object],[object Object]

Guess Where This Is… This is the ratio for this Scale Representation!

Try This One… ,[object Object],[object Object],[object Object],[object Object]

Practice Setting Up Proportions ,[object Object],[object Object],[object Object],[object Object]

Chapter 6 Section 3 Similar Figures

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Chapter 6 Section 3 Similar Figures