What is a right angle?
An angle that measures exactly 90 degrees.
With your board, draw:
Parallel Lines
Your drawing should show two lines going the same direction and are equally distanced apart.
Are 23 degrees and 67 degrees complementary?
Yes, they both equal 90 degrees.
Two angles beside each other along a straight line should equal how many degrees?
180 degrees.
An angle that measures less than 90 degrees is called an _______ angle.
Acute
What are supplementary angles?
Two angles that measure up to 180 degrees.
With your board, draw:
Supplementary Angles
You should have drawn a straight line that has been cut.
If one angle is 70 degrees, what is measurement of the other angle to make it a complementary angle?
20 Degrees
What is the relationship for angles 1 and 5?
Corresponding Angles
An angle that measures 123 degrees is an _______ angle.
Obtuse
What are two angles that are directly across each other on a single intersection called?
Vertically opposite
With your board, draw:
Vertically opposite angles
two angles directly across each other.
Are 110 degrees and 90 degrees supplementary?
No, they do not equal 180 degrees.
What is the relationship for angles 1 and 8
Alternate Interior
An angle that measures exactly 180 degrees is...
A straight line.
What is a transversal?
A line that intersects two parallel lines
With your board, draw:
A bisected angle
An angle that has been cut equally in half.
Angle A and angle B are supplementary. If angle A is 100 degrees, what measurement is angle B?
80 Degrees
If angle 1 was 83 degrees, what is the measurement for angle 4?
83 Degrees
An angle that measure 89.6 degrees is....
an acute angle
What are two angle measurements that equal 90 degrees called?
Complementary Angles
With your board, draw:
Alternate Interior Angle
Two angles inside the parallel lines and opposite each other on the transversal.
Two complementary angles will form a ______ angle.
A right angle.
If angle 3 is 70 degrees, what measurement would angle 5 be?
110 Degrees
An angle that measure 225 degrees is....
a reflex angle