math unit 1:2 - 1:3

Coordinate of a point

Which is essentially describing the point's location according to a number line or coordinate plane. (unit 1:2)

Congruent

term to describe figures that are the same size and same shape. (unit 1:2)

Segment Addition Postulate:

If Y is between points X and Z on a line, then

degree

a unit of measure that is the result of dividing a circle into 360 equal parts, or dividing a half-circle into 180 equal parts (unit 1:3)

acute angles

an angle that has a measure less than 90 degrees (unit 1:4)

right angle

an angle that has a measure of exactly 90 degrees (unit 1:3)

obtuse angle

an angle that has a measure greater than 90 degrees, and less than 180 degrees (unit 1:3)

Angle Congruence Postulate

If two angles have the same measure, then they are congruent. (unit 1:3)

segment congruence postulate

If two segments have the same length, then the segments are congruent. (unit 1:3)

Angle Addition Postulate

If point D is in the interior of

then

is equal to

Complementary Angles

are two angles whose measures have a sum of 90 Degrees. (UNIT 1:3)

supplementary angles

are two angles whose measures have a sum of 180 Degrees. (unit 1:3)

linear pair

a term that defines when the endpoint of a ray is on a line so that two angles are formed. (unit 1:3)

linear pair property

If two angles form a linear pair, then they are supplementary.