Theorems on Angles

The Triangle Sum Theorem states that a triangle's angles have a sum of.......

• 90

• 180

• 4

• congruent angles

The Exterior Angle Theorem states that the sum of angles 1 and 2 will equal ______.

• < 4

• 90

• < 3

• 180

• 95

• 85

• 35

• 45

• 26

• 36

• 85

• 144

• 145

• 113

• 102

• 78

• 89

• 211

• 81

• 119

Which angle relationship is shown?

• Alternate Exterior

• Alternate Interior

• Corresponding

• Vertical

What angle relationship is shown?

• Corresponding

• Supplementary

• Same-Side Interior

• Alternate Interior

What angle relationship is shown?

• Vertical

• Same-Side Interior

• Supplementary

• Corresponding

Find the value of x and state which angle relationship is shown.

• Supplementary angles; x = 38

• Vertical angles; x = 142

• Alternate Interior angles; x = 142

• Corresponding angles x = 142