Measuring Angles with A Protractor

What is the range of measurements for obtuse angles?

• 0 to 90 degrees

• 90 to 180 degrees

• 180 to 360 degrees

• Less than 90 degrees

What is an acute angle?

• An angle that measures exactly 90 degrees.

• An angle that measures more than 90 degrees.

• An angle that measures less than 90 degrees.

• An angle that measures exactly 45 degrees.

If an angle measures 35 degrees, what type of angle is it?

• Obtuse angle

• Right angle

• Acute angle

• Straight angle

If an angle measures 132 degrees, what type of angle is it?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

How do you measure an angle with a protractor?

• Align the protractor's baseline with one side of the angle and read the measurement where the other side crosses the protractor.

• Place the protractor on the angle and rotate it until it matches the angle's vertex.

• Draw a line from the vertex to the protractor's center and measure the distance to the angle's endpoint.

• Use a ruler to measure the length of the angle's sides and calculate the angle using trigonometry.

What is an obtuse angle?

• An angle that measures less than 90 degrees.

• An angle that measures exactly 90 degrees.

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

• An angle that measures more than 180 degrees.

What is a straight angle?

• An angle that measures exactly 90 degrees.

• An angle that measures exactly 180 degrees.

• An angle that measures less than 90 degrees.

• An angle that measures more than 180 degrees.

If an angle measures 86 degrees, what type of angle is it?

• Obtuse angle

• Right angle

• Acute angle

• Straight angle

What type of angle is 90 degrees?

• Obtuse angle

• Acute angle

• Right angle

• Straight angle

What is the measurement of an acute angle?

• Less than 45 degrees

• Less than 90 degrees

• Exactly 90 degrees

• More than 90 degrees