2.2 Angle Pairs + Angle Addition

Complementary angles are a pair of angles that add up to ______ degrees.

• 90

• 180

• 360

• 45

Congruent angles are two angles that have the __________ __________________.

• same measure

• different measure

• same vertex

• different sides

A linear pair is formed when two angles are ​ (a)   and ​ (b)   . This means, if two angles form a linear pair, they have a sum of ​ (c)   degrees.

• adjacent
• supplementary
• 180
• complementary
• side-by-side
• 90
• 120
• vertical

Supplementary angles are a pair of angles that add up to _______ degrees.

• 180

• 90

• 360

• 45

Vertical angles are formed by ​ (a)   straight lines that intersect to form the letter ​ (b)   . They are the angles across from each other in that diagram. Vertical angles are ​ (c)   , which means that they have the same measure.

• intersecting
• parallel
• perpendicular

• skew

• L
• same
• X
• congruent

If an angle is bisected, it is cut into ​ (a)   congruent pieces. This means that these resulting angles are ​ (b)   the measure of the bisected angle. This also means that the 2 resulting angles are ​ (c)   .

• 2
• half
• congruent
• 3
• one-third
• similiar
• 4
• quarter
• identical

Match the angle pair relationship that BEST describes the image.

• Supplementary

• Complementary

• Adjacent

Match the angle pair relationship that BEST describes the image.

• Linear Pair

• Congruent

• Complementary

• Adjacent

Choose the best angle addition statement (postulate) for the image show. Hint: This is the mandatory step!

• m∠ABC + m∠CBD = m∠ABD

• m∠ABC = m∠ABD + m∠ACB

• m∠ABD + m∠DBC = m∠DBA

Find the value of xº

Mathematical Equivalence

ON