Angle Vocabulary
Classifying Triangles
Pythagorean theorem
Find the missing angle 1
Find the missing angle 2
100
Two angles that add up to 90 degrees
Complementary angles
100
Angles that are less than 90 degrees.
Acute angles
100
Use the Pythagorean theorem a2 + b2 = c2 to find the missing hypotenuse for the triangle with legs 3 and 4 cm long
5 cm
100
Find the measure of angle B
25 degrees
100
What is the sum of all of the angles in a triangle?
180 degrees
200
What is the relationship between angle 1 and angle 2?
Supplementary angles
200
Triangles that have all sides equal.
Equilateral triangles
200
Use the Pythagorean theorem a2 + b2 = c2 to find the missing hypotenuse for the triangle whose legs are 6 and 8.
10
200
What is the measure of angle C?
50 degrees
200
What is the measure of angle x?
71 degrees
300
What is the relationship of angles 3 and 6?
Alternate interior angles
300
Triangles that have two equal sides.
Isosceles Triangles
300
Use the Pythagorean theorem a2 + b2 = c2 to find the missing hypotenuse for the triangle whose legs are 5 and 12.
13
300
What is the measure of x?
110 degrees
300
What is the measure of angle B and angle C?
m angle B = 58 degrees
m angle C = 42 degrees
400
What is the relationship of angles 2 and 7?
Alternate exterior angles
400
Triangles that have no equal sides.
scalene triangles
400
Use the Pythagorean theorem a2 + b2 = c2 to find the missing SIDE for the triangle with a=6 and c=10
b = 8
400
Find the measure of angle h
92 degrees
400
What is the measure of the exterior angle a?
67 degrees
500
What is the relationship of angles 5 and 8?
Vertical angles (angles directly across from each other)
500
Triangles that have one angle greater than 90 degrees.
obtuse triangles
500
Use the Pythagorean theorem a2 + b2 = c2 to find the missing SIDE for the triangle with b=12 and c=13
a = 5
500
Solve for x
x = 15
500
The interior angles of a triangle are "x" degrees, "x + 70" degrees and 28 degrees. Find the value of x.
x = 41