Angles and Triangles

When two or more angles combine to make exactly 180 degrees

• Complementary

• Adjacent

• Straight

• Supplementary

An angle with exactly 90 degrees

• Acute

• Right

• Reflex

• Vertical

When two angles share a vertex and one line segment (next to each other)

• Adjacent

• Vertical

• Parallel

• Perpendicular

When two or more angles combine to make exactly 90 degrees

• Adjacent

• Complementary

• Transversal

• Supplementary

When two angles share a vertex (on the opposite side from each other)

• Vertical

• Vertex

• Parallel

• Reflex

When one line intersects two parallel lines

• Adjacent

• Supplementary

• Complementary

• Transversal

Which pair of angles is an example of corresponding angles?

1) Given the two parallel lines cut by a transversal.

What is the vertical angle to angle 4?

• Angle 2

• Angle 6

• Angle 8

• Angle 7

Supplementary Angles measure _____ degrees.

• 180
• 55
• 100
• 90