Measuring Angles

What is a supplementary angle?

• Two angles whose measures add up to 90 degrees.

• Two angles whose measures add up to 180 degrees.

• Two angles that are adjacent to each other.

• Two angles that are equal in measure.

What is the measure of a half rotation?

• 90 degrees

• 180 degrees

• 360 degrees

• 45 degrees

What is a right angle?

• A right angle measures exactly 90 degrees.

• A right angle measures 45 degrees.

• A right angle measures 180 degrees.

• A right angle measures 60 degrees.

What is a complementary angle?

• Two angles that add up to 90 degrees.

• Two angles that add up to 180 degrees.

• Two angles that are equal in measure.

• Two angles that are adjacent to each other.

What is the measure of a full rotation?

• 180 degrees

• 360 degrees

• 90 degrees

• 270 degrees

What is a line segment?

• A line that extends infinitely in both directions.

• A part of a line that has two endpoints.

• A curve that connects two points.

• A straight path that has no endpoints.

If an angle measures 145 degrees, what type of angle is it?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

What is a ray?

• A ray is a part of a line that starts at a point and extends infinitely in one direction.

• A ray is a line that has two endpoints.

• A ray is a straight line that curves at one end.

• A ray is a segment of a circle.

What is an obtuse angle?

• An obtuse angle measures less than 90 degrees.

• An obtuse angle measures exactly 90 degrees.

• An obtuse angle measures more than 90 degrees but less than 180 degrees.

• An obtuse angle measures more than 180 degrees.

What is an acute angle?

• An acute angle measures less than 90 degrees.

• An acute angle measures exactly 90 degrees.

• An acute angle measures more than 180 degrees.

• An acute angle measures between 90 and 180 degrees.