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Angles - Formed when two rays share a common endpoint - PowerPoint PPT Presentation

Angles - Formed when two rays share a common endpoint. Adjacent Angles – Angles that share a vertex, one side and no interior points. Vertical Angles – Pairs of angles formed where two lines intersect. These angles are formed by rays pointing in opposite directions. .

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Angles- Formed when two rays share a common endpoint

Vertical Angles – Pairs of angles formed where two lines intersect. These angles are formed by rays pointing in opposite directions.

Complementary Angles – A pair of angles whose measures sum to 90 degrees. Each angle in the pair is the other’s complement.

Can you describe this angle? degrees.

• Obtuse Angle

• Acute Angle

• Complementary Angles

• Vertical Angles

Quiz Question 1 degrees.

C

A

E

D

B

Angles AEB and CED are ________________

Quiz Question 2 degrees.

C

A

B

Angle ABC is a/an _______________ angle.

Quiz Question 3 degrees.

A

C

B

D

Angles ABC and CBD are ________________ angles.

Quiz Question 4 degrees.

C

D

50

40

A

B

Angles ABD and CBD are ______________ angles

Quiz Question 5 degrees.

C

B

A

D

Angle ADC is a/an ______________ angle

Due tomorrow –20 points

• Choose one of the 5 terms. Create on notebook paper or any 8 ½ by 11 inch piece of paper a poster. On this poster must be the name, its definition, and a visual representation. Your name must be written on the front of the poster.

• Your poster will be evaluated on the following basis:

• Contains all the required elements.

• Neatly written, no spelling errors

• Colorful and original

Any questions?