Who am I?
What's my complement?
What's my supplement?
Angle Relationships
Angle Definitions
100
a right angle
What is an angle whose degree measure is exactly 90?
100
40 degrees
What is 50 degrees?
100
100 degrees
What is 80 degrees?
100

The equation 30 + ? = 90 shows this relationship.

What is complementary?

100
angles that add up to 90 degrees
What are complementary angles?
200
an acute angle
What is an angle whose degrees measure is less than 90?
200
60 degrees
What is 30 degrees?
200
60 degrees
What is 120?
200
40 + 140 = 180 degrees shows this angle relationship.
What is supplementary?
200
angles that add up to 180 degrees
What are supplementary angles?
300
an obtuse angle
What is an angle whose degree measure is greater than 90 and less than 180?
300
37 degrees
What is 53 degrees?
300
47 degrees
What is 133 degrees?
300

Look at the image Mr. Soumas will show you. What is the missing angle? Why is it that angle?

31. It is corresponding.

300

What is the relationship of angle a and b in the image Mr. Soumas will show you?

Corresponding

400
a straight angle
What is an angle whose degrees measure is exactly 180 and forms a straight line?
400

65

What is 25

400
90 degrees
What is 90?
400

Find the missing angle in the image Mr. Soumas is will show you. How do you know? 

36. All angles in a triangle have to equal 180.

400

What are all the relationships you can see between angles a,b and c in the image Mr. Soumas will show you? (there are 3)

Alternate Exterior

Supplementary

Corresponding 

500
a reflex angle
What is an angle whose degree measure is greater than 180 and less than 360?
500

On one side there is a right angle, on the other side there are three angles: 15, 20 and the third angle is unknown. What is the third angle?

55

500

On a straight line there are three angles. 35 and 45. What is the third angle?

100

500

Look at the image Mr. Soumas will show you. What is the ? angle?

145.

500

Explain in the image Mr. Soumas will show you what angles are the same as angle a. Explain why.

d) Vertical

f) Alternate exterior

g) Corresponding

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