Abc's of Angles
Lovely Lines
Vernacular Vocabulary
Terrific Triangles
Algebraic Angles
100
Degrees in a full circle
What is 360o?
100
Goes on forever in both directions
What is a line?
100
Interior angles lying on the same side of the transversal cutting across two parallel lines.
What are consecutive interior angles?
100
Has three sides of equal length
What is an equilateral triangle?
100
Find the missing angle.
x = 50, so the angle = 104*
200
Degrees in a Right Angle
What is 90?
200
Has two end points
What is a line segment?
200
The angles which occupy the same relative position at each intersection where a straight line crosses two parallel lines.
What are corresponding angles.
200
Two base angles and opposite sides are congruent.
What is an isosceles triangle?
200
Find the missing angle.
b = 47*
300
Angle measurement of a straight line.
What is 180o?
300
Goes on forever in one direction
What is a ray?
300
Each pair of these angles are inside the parallel lines, and on opposite sides of the transversal
What are alternate interior angles?
300
All angles are different measures.
What is a scalene triangle?
300
Find the missing angle.
x = 80, so missing angles are 80* and 160*
400
Degree meant by this symbol ⊥
What is 90?
400
Two lines that go on forever and never touch
What are parallel lines?
400
Two angles that have a sum of 180o
What are supplementary angles?
400
Exterior angle is equal to the sum of these angles.
What are remote interior angles?
400
Find the missing angle.
g = 29*
500
Degrees in a trapezoid.
What is 360, same for circle and every shape with 4 sides.
500
Two lines that cross but do not necessarily create a 90o angle
What are intersecting lines?
500
Name for the extra line you can add to a sketch to assist with calculations.
What is an auxiliary line?
500
The longest side of a right triangle.
What is a hypotenuse?
500
Find the missing angles.
x = 30 and y = 120, so missing angles are 60* and 120*
600
Find the missing angle.
What is 60 degrees?