7.2 - Similar Polygons

Presentation

•

Mathematics

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8th - 11th Grade

•

Medium

•

CCSS

HSG.SRT.A.2, 7.G.A.1

Standards-aligned

Steve Dull

Used 14+ times

FREE Resource

7 Slides • 3 Questions

7.2 - Similar Polygons

By Steve Dull

Objective

To identify and apply similar polygons.

Essential Understanding

You can use ratios and proportions to decide whether two polygons are similar and to find unknown side lengths of similar figures.

Vocabulary

Similar Figures

have the same shape but not necessarily the same size.

Abbreviate is similar to using the ∼ symbol.

Some text here about the topic of discussion

Similar Polygons

Two more things:

The ratio of corresponding sides is called the scale factor.
If polygons are similar then their perimeters are also proportional.

Multiple Choice

What is the scale factor of $\Delta ABC$ to $\Delta DEF$ ?

3:2

6:5

2:3

5:4

Open Ended

What is the length LY?

Type response here

Poll

How we feeling on similarity?

Pretty much lost

It kinda makes sense

I think I get it, maybe a little more practice and I'm good

Take a long lunch Mister, I'm gonna teach your next class

7.2 - Similar Polygons

By Steve Dull

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