1-5 Practice (Angle Relationships)

Match each type of relation with its meaning.

• form right angles

• complementary angles

• add up to 180 degrees

• perpendicular lines / rays

• add up to 90 degrees

• supplementary angles

Choose two acute vertical angles.

Choose two obtuse vertical angles.

Choose a linear pair of angles.

Choose two acute adjacent angles.

The measure of 2 complementary angles is 7x+17 and 3x-20. Find the measure of the angles.

Measure of the smaller angle =​ (a)   degrees

Measure of the larger angle =​ (b)   degrees

• 7.9
• 82.1
• 8.6
• 10.3
• 88
• 61.5
• 31.9
• 25
• 4.5
• 32.1

• 9
• 1
• 2
• 3
• 5
• 7
• 8
• 11
• 5.5
• 12

• 25
• 22
• 33
• 5
• 17
• 10.5
• 11
• 16.5
• 3.4
• 29