Do NowDo Nowyou will need your bookyou will need your book

Draw a figure in your notebook. Draw a figure in your notebook.

Label it with any side lengths you’d Label it with any side lengths you’d like.like.

Then apply a scale factor of 3:2.Then apply a scale factor of 3:2.Should you scaled model be bigger or Should you scaled model be bigger or

smaller?smaller?Draw the scaled model in your Draw the scaled model in your

notebook. notebook.

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ObjectiveObjective

Today we will practice more with Today we will practice more with setting up proportions and solving setting up proportions and solving for missing sides. for missing sides.

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1541

12

54.6620

x

oror

12

20 41

x=

41

12 20

x =

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Page 280Page 280

ClosingClosing

What does it mean if two triangles What does it mean if two triangles are similar?are similar?

How can we be sure that two How can we be sure that two polygons are similar figures?polygons are similar figures?

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H/WH/W

Page 286 #10 A-IPage 286 #10 A-I

Study for tomorrow’s quiz on Scale Study for tomorrow’s quiz on Scale Factors, and using scale factors and Factors, and using scale factors and proportions to solve for missing sides proportions to solve for missing sides of polygons. of polygons.

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