Angle Relationship

complementary angles

• an angle measuring between 90° and 0°
• formed by two rays with a common endpoint
• the sum of two angles equaling 90°
• two angles that have the same angle measure

supplementary angles

• an angle measuring between 90° and 180°
• the sum of two angles equals 180°
• two angles that share a vertex and a side
• an angle that measures 90°

adjacent angle

• two angles that share a vertex and a side
• formed by two rays with a common endpoint
• two angles that have the same angle measure
• formed by two intersecting lines and are opposite of each other

Name the angle relationship.

• Alternate Interior
• Alternate Exterior
• Corresponding
• Vertical Angles

These angles are...

• Complementary
• Supplementary
• Neither

Angles 2 and 4 are

• Corresponding
• Alternate Interior
• Alternate Exterior
• Vertical

Find x.

• 80
• 100

The supplement of an angle is 65 °. What is the measure of the angle?

• 25°
• 15°
• 115°
• 35°

Which of the following is supplementary to a 4 degree angle?

• 96
• 86
• 94
• 176

What is the value of x?

• 9
• 5
• 13
• 12