Review: Angle Relationships

Adjacent angles

• are always equal
• cannot be supplementary
• are always supplementary
• share a common vertex and edge

Complementary angles...

• are angles that add up to 90 degrees
• are angles that add up to 180 degrees
• form a straight angle

• form a right angle

Supplementary angles

• Form a vertical angle

• Form a straight angle

• Two angles that add up to 180 degrees

• Two angles that add up to 270 degrees

Complete the statement. If a transversal intersects two parallel lines, then __________.

• the alternate interior angles are congruent
• the lines become perpendicular
• the lines become non-parallel
• the transversal becomes a parallel line

Complete the statement. If a transversal intersects two parallel lines, then ___________ angles

are supplementary.

• Alternate Interior

• Corresponding
• Adjacent
• Same Side Interior

When writing a geometric proof, which angle relationship could be used alone to justify that

two angles are congruent?

• Complementary angles
• Supplementary angles
• Vertical angles
• Adjacent angles

Give the measure of angle e.

• 60 degrees

• 90 degrees

• 180 degrees

• 210 degrees

Give the measure of angle h?

• 45 degrees

• 60 degrees

• 90 degrees

• 180 degrees

Give the measure of angle c.

• 90 degrees
• 180 degrees
• 45 degrees
• 60 degrees

Give the measure of angle f.

• 90 degrees
• 120 degrees

• 145 degrees

• 180 degrees