Triangle Inequality Theorem
Triangle Sum Theorem
Solve for x
Angle Vocabulary
100
Can these three sides make a triangle?
6, 7, 9
Yes
100
What is the value of x?
70
100
Use the three angles to solve for x.
45, 75, 2x
x = 30
100
A straight angle is __________ degrees.
180
200
Can these three sides make a triangle?
10, 8, 19
No
200
What is the third angle of the triangle?
50, 45, B
85
200
Use the three angles to solve for x.
25, 140, 3x+3
x = 4
200
Complementary angles add up to _______ degrees.
90
300
Can these three sides make a triangle?
13, 4, 9
No
300
What is the third angle of the triangle?
32, 63, B
85
300
Solve for x.
x = 30
300
Supplementary angles add up to _______ degrees.
180
400
What could the third side of the triangle be?
7, 5, ?
answers vary
400
What is the third angle of the triangle?
15, 86, X
79
400
Use the three angles to solve for x.
35, 90, 5x + 10
9
400
What type of angles are these?
Vertical Angles
500
What could the third side of the triangle be?
4, 5, ?
answers vary
500
What is the missing angle?
49
500
Solve for x.
x = 50
500
Two angles that add up to 180 degrees are called _________________ angles.
Supplementary or right angles