Underwater Math Quiz

How does a protractor help in measuring angles?

• By counting in increments of 15 degrees

• By counting in increments of 10 degrees

• By counting in increments of 20 degrees

• By counting in increments of 5 degrees

What is the measure of an angle if one ray is at 90 degrees and the other is at 40 degrees?

• 90 degrees

• 130 degrees

• 40 degrees

• 50 degrees

If two angles measure 25 degrees and 20 degrees, what is the measure of the third angle in a right angle?

• 55 degrees

• 35 degrees

• 45 degrees

• 65 degrees

What is the total degree measure of a circle?

• 180 degrees

• 270 degrees

• 90 degrees

• 360 degrees

How can you measure an obtuse angle using a protractor?

• By using addition and counting in increments of 20 degrees

• By counting in increments of 5 degrees

• By counting in increments of 15 degrees

• By using subtraction and counting in increments of 10 degrees