146 10.1a Angle Relationships

An angle that is exactly 90 degrees.

• right
• acute
• obtuse
• straight

An angle that is exactly 180^o.

• right
• acute
• obtuse
• straight

An angle that is greater than 0^o and less than 90^o.

• right
• acute
• obtuse
• straight

An angle that is greater than 90^o and less than 180^o

• right
• acute
• obtuse
• straight

An angle that measures 76^o.

• right
• acute
• obtuse
• straight

An angle that measures 133^o.

• right
• acute
• obtuse
• straight

An angle that measures 180^o.

• right
• acute
• obtuse
• straight

The angle relationship shown is -

• complementary angles
• supplementary angles
• vertical angles
• angle bisector

∠1 and ∠3 can best be described as -

• complementary angles
• supplementary angles
• vertical angles
• adjacent angles

What type of angles are these?

• Adjacent Angles

• Linear Pair

• Complementary Angles

• Supplementary Angles

• Vertical Angles