Classifying Triangles
Triangle Sum Theorem
Angles
Missing Angles
100
This Triangle has exactly one 90 degree angle.
Right Triangle
100
The triangle sum theorem states that all angles in a triangle have a sum of _____________.
180 degrees
100
An angle that measures exactly 180 degrees
Straight Angle
100
x=22
200
This triangle has at least two equal sides.
Isosceles Triangle
200
Find the missing angle.
25 degrees
200
Angles that share a vertex and a side
Adjacent angles
200
These two angles are complementary. Solve for x
x=56
300
This Triangle has angles that measure 110, 50, and 30 degrees.
Obtuse Triangle
300
What is the measure of angle c ?
65 Degrees
300
Angles that equal 90 degrees together.
Complementary Angles
300
These two angles are supplementary angles. Solve for x
x=50
400
This triangle has side lengths that measure 10in, 6in and 8in.
Scalene Triangle
400
What is the measure of angles d and e 
d= 65 degrees
e= 65 degrees
400
Two angles that equal that 180 degrees together.
Supplementary Angles
400
Solve for x
x=85 degrees
500
Name this triangle by its sides and angles.
Obtuse, isosceles triangle
500
Solve for x
x=15
500
Angles that are opposite of each other when two lines intersect.
Vertical Angles
500
Angles a and c are vertical angles. Solve for a, b, and c.
a=133 degrees
b= 47 degrees
c= 133 degrees