Geom 8.2 Similar Triangles

Geometry

​Section 8.2

Similar Triangles

Talk it over. - 30 seconds

Multiple Choice

The triangles are congruent by

• SSS

• SAS

• ASA

• AAS

• HL

GEOMETRY SECTION 8.2

SIMILAR POLYGONS
What are the properties of similar polygons?

Multiple Select

Define corresponding.

• Two angles that lie in the same postion with respect to two lines cut by a tranversal.

• Two pen pals who write letters to each other.

• Two angles in congruent polygons that lie in the same position and are equal to each other.

• Two sides in congruent polygons that lie in the same position and are equal to each other.

• For example the two angles represented by SAS

Multiple Choice

Which angle is congruent to

$$\angle P$$

• $$\angle V$$  

• $$\angle R$$  

• $$\angle L$$  

• $$\angle T$$  

Multiple Choice

Which angle is congruent to

$$\angle M$$

• $$\angle O$$  

• $$\angle S$$  

• $$\angle U$$  

• $$\angle T$$  

Multiple Choice

Which side corresponds to ST?

• LM

• NO

• TU

• MN

Multiple Choice

What is the similarity ratio of the two pentagons?

• 20/48

• 5/12

• 10/24

• 1:2.4

5/12

Multiple Choice

Are the two rectangles similar?

• Yes, they have congruent corresponding angles and the corresponding sides are proporitonal

• No, they have congruent corresponding angles but the corresponding sides are not proporitonal

• No, even though the corresponding sides are proporitonal they don't have congruent corresponding angles.

• There's not enough information to make the decision.

Multiple Choice

What is the similarity ratio of the two rectangles?

• 2/3

• 4/9

• 8/27

• None of these

Talk it over - 30 seconds.

Multiple Choice

What is the similarity ratio of the two trapezoids?

• 2/3

• 3/4

• 4/5

• 7/10

Multiple Choice

If Quad ABCD is similar to Quad RSTV then what side corresponds to CD?

• $$\overline{RS}$$

• $$\overline{ST}$$

• $$\overline{TV}$$

• $$\overline{RV}$$

Multiple Choice

If Quad ABCD is similar to Quad RSTV then what angle corresponds to angle S?

• $$\angle A$$

• $$\angle B$$

• $$\angle C$$

• $$\angle D$$

Homework

Formative 8.2

#1 - 16

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