Show:
Complements and Supplements
Definitions
Triangle Angle Sums
Word Problems
Special Angle Pairs
100
What is the complement of 78 degrees?
12
100
Vertical angles are (opposite, supplementary, complementary) each other?
Opposite
100
In Δ ABC: ∠A=45°, ∠B=45°. What is ∠C?
90°
100
Two angles are supplements one angle is 5 times the other. What are the measurements of the two angles?
30° and 150°
100

"This angle pair adds up to 90 degrees."

 "What are complementary angles?"

200
What is the complement of 45° 13'?
44° 47'
200
The sum of angles of a triangle is equal to ____?
A straight angle
200
In Δ ABC: ∠A=35°, ∠B=100°. What is ∠C?
45°
200
Two angles are complements one angle is 12° more than the other. What are the measurements of the two angles?
39° and 51°
200

Q: "This angle pair adds up to 180 degrees."

A: "What are supplementary angles?"

300
What is the complement of 80° 50'?
9° 10'
300
One 360th of a circle is equal to one (degree, minute, second)?
Degree
300
In Δ ABC: ∠A=106°, ∠B=3°. What is ∠C?
71°
300
Two angles are complements one angle is 6° less than the other. What are the measurements of the two angles?
42° and 48°
300

Q: "These angles are opposite each other when two lines intersect and are always equal."

A: "What are vertical angles?"

400
What is the supplement of 137° 15'?
42° 45'
400
Complementary angles add to equal ____.
90 degrees
400
In Δ ABC: ∠A=45° 30', ∠B=55°30'. What is ∠C?
79°
400
Two angles are supplements one angle is twice the other. What are the measurements of the two angles?
60° and 120°
400

Q: "These angles are on the same side of a transversal and outside two parallel lines."

A: "What are same-side exterior angles?"

500
What is the supplement of 55° 36'?
124° 24'
500
Supplementary angles add to equal ____.
180 degrees or a straight angle.
500
In Δ ABC: ∠A=118° 12', ∠B=34° 10'. What is ∠C?
27° 38'
500
Two angles are supplements one angle is 30° less than twice the other. What are the measurements of the two angles?
70° and 110°
500

Q: "This type of angle pair is found on opposite sides of a transversal and inside two parallel lines."

A: "What are alternate interior angles?"