Angle Vocabulary
Classifying
Pythagorean theorem
Find the missing angle
Find the missing angle²
100
Two angles that add up to 90 degrees
Complementary angles
100
What are acute angles?
Angles that are less than 90 degrees
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 (add up to 180 degrees)
200
What is equilateral triangles?
Triangles that have all sides equal
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
The interior angles of a triangle are:
"x" degrees, "x" degrees, and 90 degrees.
Find the value of x.
45 degrees
300
What is the relationship of angles 3 and 6?
Alternate interior angles
300
What is isosceles triangles?
Triangles that have two equal sides
300
Find the hypotenuse for the triangle whose legs are 5 and 12.
13
a2 + b2 = c2
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
80 + 8x + 2 + 6x = 180
82 + 14x = 180
14x = 98
x = 7
400
What is the relationship of angles 2 and 7?
Alternate exterior angles
400
What is scalene triangles?
Triangles that have no equal sides
400
Find the missing leg for a triangle with one leg = 6 and hypotenuse = 10.
b = 8
a2+b2=c2
62+b2=102
36+b2=100
b2=64 (square root of each side)
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
500
What is obtuse triangles?
Triangles that have one angle greater than 90 degrees
500
Find the missing leg 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
x + x + 70 + 28 = 180
2x + 98 = 180
2x = 82