Finding the Quadrant in Which an Angle Lies (6.1.1)

Question 1

• Angles are measured from the positive side of the x-axis. Positive angles sweep out in a counterclockwise direction and negative angles sweep out in a clockwise direction.

Answer 1

• Angles are measured from the positive side of the x-axis. Positive angles sweep out in a counterclockwise direction and negative angles sweep out in a clockwise direction.

Question 2

• The plane is split into four regions, or quadrants, in which angles can lie.

Answer 2

• The plane is split into four regions, or quadrants, in which angles can lie.

Question 3

• Acute angles measure between 0° and 90°.

Answer 3

• Acute angles measure between 0° and 90°.

Question 4

• Obtuse angles measure between 90° and 180°

Answer 4

• Obtuse angles measure between 90° and 180°

Question 5

• Angles that measure exactly 90° are right angles.

Answer 5

• Angles that measure exactly 90° are right angles.

Question 6

• Angles that measure exactly 180° are straight angles.

Answer 6

• Angles that measure exactly 180° are straight angles.

Question 7

• Coterminal angles are angles whose initial sides and terminal sides are the same.

Answer 7

• Coterminal angles are angles whose initial sides and terminal sides are the same.