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Acute
Obtuse
Right
Vocabulary
Bonus
100
On your dry erase board, draw an acute angle.
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100
On your dry erase board, draw an obtuse angle.
_/
100
Draw a right angle on your dry erase board.
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100
What is a protractor? Draw a picture of it and tell me what it is used for.
A protractor is used to measure angles in degrees.
100
A straight angle measures how many degrees?
180 degrees
200
An acute angle can be classified between what group of degrees?
1-89 degrees
200
What is the range of degrees that an obtuse angle could measure?
An obtuse angle can measure 91-179 degrees.
200
What degree does a right angle measure?
90 degrees, exactly
200
How are a ruler and protractor alike?
They both measure objects. They both have units of measurement.
200

Draw and describe supplementary angles.

Supplementary angles are angles that add up to 180 degrees or form a straight angle

300
Look around the classroom and tell me something that has an acute angle in it.
The clock, the stars on the flag, the flag on the back of the board, the small angle on the legs of my desk.
300
How is an obtuse angle different from a straight angle?
An obtuse angle measures less than 180 degrees. A straight angle measures exactly 180 degrees.
300
Is a right angle considered an obtuse angle?
No, an obtuse angle measures greater than a right angle which measures 90 degrees.
300
How are rulers and protractors different?
A ruler measures length or width, a protractor measures angles. A ruler measures in inches or centimeters. A protractor measures in degrees.
300
What is the vertex of an angle?
The middle point that connects 2 rays.
400
What is the difference between an acute and obtuse angle?
Acute angles measure less than 90 degrees. Obtuse angles measure greater than 90 degrees.
400
What is the difference between a right angle and an obtuse angle?
A right angle measures 90 degrees, an obtuse angle measures greater than 90 degrees.
400
How are right angles labeled?
Right angles are labeled with a perfect square in the corner of the shape with a right angle.
400
How many degrees are in a complete circle?
360 degrees
400

Draw and describe complementary angles

Complementary angles are angles that add up to 90 degrees or form a right angle. 
500

I am angle that measures 175 degrees.  Someone split me into an angle that measures 99 degrees and another angle!  What is the measurement of the other angle?

76 degrees