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angles

The amount of turning between two lines meeting a common point.

vertex

The point where two sides meet. (Shared end points of the line segments of a polygon.)

right angle

An angle that is 90 degrees (It makes a square in the corner).

Acute Angle

An angle that measures LESS than 90 degrees.

abtuse angle

an angle with measure between 90 and 180

straight angle

An angle that measures 180 degrees

Postulate

A statement that does not have to be proven true

Angle Addition Postulate

D is in the interior of angle ABC and only if m<ABD + m<DBC = m<ABC.

bisect

To divide into two equal parts

Adjacent Angles

Angles that are next to each other. They share a vertex and a common side.

Vertical Angles

Angles opposite one another when two lines intersect.

Congruent

A plane figure with the same size and shape.

linear pairs

formed by two adjacent angles that equal 180

suplimentary

180 degrees

complimentary

angles with the sum of 90 degrees

Perpendicular lines

lines in a plane that intersect to form 4 right angles

parallel lines

2 lines that never cross/intersect and stay the same distance apart

skew lines

Non coplanar lines that aren't parallel or intersecting

parallel planes

planes that do not intersect

transversal

A line that intersects two or more lines.

alternate interior angles

Angles that lie within a pair of parallel lines and on opposite sides of a transversal; congruent

alternate exterior angles

lines on different sides of the transversal, but on the outside of the lines cut by the transversal

consecutive interior angles

..., If two parallel lines are cut by a transversal, then each pair of consecutive interior angles is supplementary

corresponding angles

Angles that have the same relative positions in geometric figures.

skew

they have no relationship

Integer

The set of whole numbers and their opposites.

positive number

all the numbers greater than 0, on a horizontal number line to the right of 0, and all numbers above the 0 on a vertical number line

negative numbers

-amounts owed

same signs

add and keep the sign

different signs

Subtract the lesser absolute value from the greater absolute value and use the sign of the integer with the greater absolute value.

absolute value

The distance of a number from zero on a number line; shown by | |

exterior angle postulate

is always equal to the sum of the measures of the two remote interior angles

hypotonuse

The side opposite of the right angle

Inductive

The Giants have lost their last seven games. Therefore, they will probably lose their next game.

Deductive

If you brush and floss your teeth daily then you will have fewer cavities. Marie brushes and flosses her teeth daily. Therefore, she will have fewer cavities.