Special angle relationships vocabulary

Complementary angles are

• angles that add up to 180°

• angles that add up to 90°

• angles that are congruent

• angles that form a linear pair

Tags

CCSS.HSG.SRT.C.7

Supplementary angles are

• angles that add up to 180°

• angles that are always equal

• angles that add up to 90°

• angles that always obtuse

Tags

CCSS.7.G.B.5

Vertical angles are

• always add up to 180°

• angles that are always acute

• always add to 90°

• angles that are always congruent

Tags

CCSS.HSG.CO.C.9

Congruent angles

• always add to 90°

• are always equal

• are never acute

• always add to 180°

Tags

CCSS.HSG.CO.C.9

Adjacent angles are

• angles that share a common ray

• angles that are always congruent

• angles that are always supplementary

• angles that are always acute

Tags

CCSS.HSG.CO.A.1

Parallel lines are

• Lines that always intersect

• Lines that sometimes intersect

• Lines that intersect to form 4 right angles

• Lines that never intersect

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.CO.C.9

Similar shapes are

• Shapes that always have 4 angles

• Shapes that have congruent angles and sides

• Shapes that have congruent sides but angles that are different

• Shapes that have congruent angles and that the corresponding sides have a common ratio

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

A transversal is

• the side of a trapezoid

• a line that is always parallel to another line

• a line that never intersects another line

• a line that intersects two or more lines

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.CO.C.9

The image shows a set of angles that are

• a linear pair

• complementary

• a vertical pair

• vertical

Tags

CCSS.HSG.CO.C.9

Find the value of the missing angle

• 24°

• 43°

• 180°

• 33°

Tags

CCSS.HSG.CO.C.10