Question

1. Vertical angles are complementary

Answer 1

Answer:

• 1. Sometimes, 2. Never, 3. Always, 4. Never

Step-by-step explanation:

1. Vertical angles are complementary

• Sometimes (if measure45°)

2. Vertical angles are adjacent

• Never

3. The complement of an acute angle is an acute angle

• Always. Both of them < 90°

4. The supplement of an obtuse angle is an obtuse angle

• Never. Obtuse angle > 90°, supplement is (180° - obtuse), which is <90° so is acute