6.9 Decathlon Congruence, Regular Polygons, Lines Symmetry

How many lines of symmetry does the given polygon have?

• There are no lines of symmetry

• 3

• 6

• There are infinitely many lines of symmetry

Tags

CCSS.4.G.A.3

Which two angles are congruent?

• A and B

• B and E

• A and E

• D and F

• C only

Tags

CCSS.8.G.A.2

What angle in $\Delta DEF$ is congruent to $\angle B$ in $\Delta ABC$ ?

•  $\angle D$  

•  $\angle E$  

•  $\angle F$  

•  $\angle A$  

Tags

CCSS.HSG.CO.B.7

Which of the following figures is a regular polygon?

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Tags

CCSS.2.G.A.1

Write your answer in the box using capital letters only. Do not use spaces.

Given the congruent triangles, complete the congruency statements below.



 $\angle C\cong\angle$  ___

Tags

CCSS.HSG.CO.B.7

Write your answer in the box using capital letters only. Do not use spaces.

Given the congruent triangles, complete the congruency statements below.



 $\overline{BC}\ \cong$  ___

Tags

CCSS.HSG.CO.B.7

How many lines of symmetry does the polygon shown above have?

Tags

CCSS.4.G.A.3

Which two line segments are congruent? (Two correct answers).

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Tags

CCSS.8.G.A.2

Which figure is not a regular polygon?

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Tags

CCSS.2.G.A.1

What is the definition of congruence

• all shapes are congruent

• diffrent size same shape

• ONLY two sides are equal

• The same size and shape

Tags

CCSS.8.G.A.2