Angle Relationships

Name this angle.

• acute
• right
• obtuse
• none of the above

Acute angle - an angle that is ______ a 90 degree angle.

• more than
• less than
• equal to
• none of the above

Name this angle.

• acute
• right
• obtuse
• none of the above

Obtuse angle - an angle that is _______ a 90 degree angle.

• more than
• less than
• equal to
• none of the above

What type of angle is this? 

• acute
• obtuse
• right

Name this angle.

• acute
• right
• obtuse
• none of the above

A straight angle has a measure of _____ degrees.

Find the missing angle.  Find x.

• 20^o
• 70^o
• 160^o
• 180^o

What are vertical angles?

• Angles that are adjacent to each other
• Angles that add up to 180°
• Angles that are opposite of each other when lines intersect
• Angles that add up to 90°

Vertical angles are always

• 90 degrees

• 180 degrees

• congruent

• adjacent