Angle Vocab
Angles on the inside
interior angles
coplanar lines that travel in the same direction and never touch
parallel lines
Look at the picture on the board.
What kind of angles are <2 and <5?
alternate interior angles
Look at the picture on the board.
If <13 = 78º, what is the measure of <3?
102º
What is the smallest prime number?
2
angles on the outside
exterior angles
lines that intersect to form right angles
perpendicular lines
Look at the picture on the board.
What kind of angles are <4 and <7?
corresponding angles
Look at the picture on the board.
If <2 = 89º, what is the measure of <11?
What is the largest ocean on Earth?
Pacific Ocean
two angles that add up to 90 degrees
complementary angles
non-coplanar lines that never cross
skew lines
Look at the picture on the board.
What kind of angles are <5 and <11?
vertical angles
Look at the picture on the board.
If <12 = 96.5º, what is the measure of <15?
96.5º
How many adult teeth does the average human have?
32
2 angles that add up to 180 degrees
supplementary angles
a single line that crosses other lines
transversal
Look at the picture on the board.
What angle corresponds to <12?
<8
Look at the picture on the board.
If <5 = 84º, what is the measure of <15?
96º
Which animal's fingerprints are identical to human fingerprints?
koalas
angles in the same plane that share a common side and common vertex but have no common interior points
adjacent angles
How are lines named?
With any 2 points on the line
Look at the picture on the board.
Name all of the interior angles.
Angles: 2, 3, 4, 5, 6, 12, 13, 15
Look at the picture on the board.
If <7 = 112º, name all angles that measure 112º.
<3, <4, <10
What country invented paper money?
China