Right Angles
90 degrees
How much does a right angle measure?
I am part of a line and have two endpoints.
What is a line segment?
This angle is smaller than a right angle.
What is an acute angle?
Any angle that is more than 90 degrees
What is an obtuse angle?
360 degrees
How many degrees is a circle?
I form a square corner.
What is a right angle?
180 degrees
How many degrees is a straight line?
45 degrees
What angle is half of 90 degrees?
90 degrees + 30 degrees
What is 120 degrees?
Four equal sides that all measure 90 degrees
How many right angles are there in a circle?
60 degrees + 30 degrees
What is 90 degrees?
I have one endpoint and go on and on in one direction.
What is a ray?
Half of 60 degrees
What is 30 degrees?
Four 30 degree pattern blocks
What is 120 degrees?
This is a tool used to measure angles.
What is a protractor?
45 degrees + 45 degrees
What is 90 degrees?
In an intersection, I am 150 degrees and 30 degrees on opposite sides.
What is a straight line?
90 degrees - 45 degrees
What is 45 degrees?
I am more than 90 degrees, but less than 180 degrees.
What is an obtuse angle?
I measure 1 degree.
What is a unit angle?
I form the corner of a table.
What is a right angle?
90 degrees + 90 degrees
What is a straight line?
180 - 90 - 45
What is 45 degrees?
90 + 30 + 25
What is 145 degrees?
This is where two rays meet at the corner or midpoint.
What is a vertex?