Angle Relationships and Triangle Properties

Draw a linear pair and label each angle with an appropriate value.

Draw a complimentary pair of angles and label each angle with an appropriate value.

Draw a vertical pair of angles and label each angle with an appropriate value.

What angle relationship do these angles have?

• The angles are complementary.
• The angles are vertical angles.
• The angles are supplementary.
• These angles are acute.

What angle relationship do these angles have?

• The angles are supplementary.
• The angles are vertical angles.
• The angles are complementary.
• The angles are obtuse.

What angle relationship do angles a and b have?

• Angles a and b are always supplementary.
• Angles a and b are always complementary.

• Angles a and b are always equal.
• Angles a and b are always obtuse.

What is the measure of angle b?

• 40

• 50

• 90

• 130

What is the measure of angle b?

• 43

• 47

• 90

• 137

What is the measure of angle b?

• 27

• 63

• 90

• 117

What is the value of x?

• 93

• 23

• 87

• 87