Geometry Quiz

What's your name?

Which class are you in?

Which of the following is true about a right angle?

• A right angle is larger than 90°.

• A right angle is smaller than 90°.

• A right angle is 90°.

• None of them

The angle formed by the hour hand and the minute hand of the clock at 8 o'clock is a/an ______ angle.

• obtuse angle

• acute angle

• right angle

• straight angle

Which of the following is True about an acute angle?

• An acute angle is 90°.

• An acute angle is greater than 90°.

• An acute angle is smaller than 90°.

• None of them

Which of the following is True about an straight angle?

• A straight angle is smaller than 180°.

• A straight angle is greater than 180°.

• A straight angle is greater than 90°.

• A straight angle is 180°.

Which of the following is FALSE about an obtuse angle?

• An obtuse angle is smaller than 180°.

• An obtuse angle is larger than 90°.

• An obtuse angle is smaller than 90 degrees.

• An obtuse angle can be formed by two rays which share a common vertex.

Which tool can be used to measure an angle?

• A protractor

• A straight ruler

• A scale

• None of them

If all three angles in a triangle add up to 180 degrees and two angles are 40 degrees and 60 degrees, what is the measure of the last angle?

• 60 degrees

• 50 degrees

• 30 degrees

• 80 degrees

The minute and hour hands of the clock in the picture create a/ an __________ angle.

• acute

• obtuse

• straight

• right