Basic Geometry Angle Vocab

An acute angle is_____________.

• more than 90 degrees

• less than 90 degrees

• equal to 90 degrees

• equal to 180 degrees

• equal to 360 degrees

An obtuse angle is_____________.

• more than 90 degrees

• less than 90 degrees

• equal to 90 degrees

• equal to 180 degrees

• equal to 360 degrees

A right angle is_____________.

• more than 90 degrees

• less than 90 degrees

• equal to 90 degrees

• equal to 180 degrees

• equal to 360 degrees

A straight angle is_____________.

• more than 90 degrees

• less than 90 degrees

• equal to 90 degrees

• equal to 180 degrees

• equal to 360 degrees

A circle is_____________.

• more than 90 degrees

• less than 90 degrees

• equal to 90 degrees

• equal to 180 degrees

• equal to 360 degrees

Complementary angles _____________.

• always equal

• more than 180 degrees but less than 360 degrees

• add up to 90 degrees

• add up to 180 degrees

• equal to 180 degrees

Supplementary angles _____________.

• always equal

• more than 180 degrees but less than 360 degrees

• add up to 90 degrees

• add up to 180 degrees

Opposite angles are _____________.

• always equal

• more than 180 degrees but less than 360 degrees

• adds up to 90 degrees

• adds up to 180 degrees

Reflex angles are _____________.

• always equal

• more than 180 degrees but less than 360 degrees

• adds up to 90 degrees

• adds up to 180 degrees

All angles in a triangle _____________.

• always equal

• more than 180 degrees but less than 360 degrees

• adds up to 90 degrees

• add up to 180 degrees