Angles
A straight angle measures...
180 degrees
What is a protractor
A tool for measuring angles
My angle is obtuse. What angle measurement is correct?
A) 50 degrees
B) 100 degrees
B) 100 degrees
An angle measuring 91o
Obtuse
A RIGHT angle ALWAYS measures...
90 degrees
True or False? A protractor has 2 sets of degrees marked on it.
True
My angle is acute. What angle measurement is correct?
A) 50 degrees
B) 100 degrees
A) 50 degrees
An angle measuring 178o
Obtuse angle
For an angle to be ACUTE its measurements have to be...
When should you start measuring at 180o
NEVER!!!
My angle is straight. What angle measurement is correct?
A) 90 degrees
B) 180 degrees
B) 180 degrees
An angle measuring 46o
Acute angle
For an angle to be OBTUSE its measurements have to be...
More than 90 degrees but less than 180 degrees
How do you know which number line to use when measuring an angle using a protractor?
Look for the ray that start/touches the 0.
My angle is right. What angle measurement is correct?
A) 90 degrees
B) 180 degrees
A) 90 degrees
An angle measuring 1o
Acute angle
A figure formed by two rays with the same endpoint
Angle
When measure ANY angle where do you line up the center point of your protractor?
At the angle's vertex
My angle is a reflex angle. What angle measurement is correct?
A) 180 degrees
B) 275 degrees
B) 275 degrees
An angle that measures 179o
Obtuse angle