Math+Language

__**Greatest Common Factor, GCF:**__ **the largest factor that a set of number have in common, for example: THe GCF of 45 and 60 is 15.**
__**Numerator:**__ **the number on the top of a fraction** __**Denominator:**__ **the number on the bottom of a fraction** __**Reciprocal Property:**__ **a fraction multiplied by its reciprocal is always equal to 1, for example: 1/5 * 5/1 = 1**

__complementary angles:__ a pair of angles that add up to 90 degrees

 * __supplementary angles:__** a pair of angles that add up to 180 degrees

__**interior angles:**__ an angle that is inside a shape

__**exterior angles:**__ an angle that is outside of a shape

__**adjacent angle:**__ two angles that share a side and a point

__**vertical angle:**__ two angles that are opposite eachother


 * __acute triangle:__** a triangle that has all acute angles


 * __obtuse triangle:__** a triangle with one obtuse angle


 * __right triangle:__** a triangle with one right angle


 * __equilateral triangle:__** a triangle with all sides and angles that are equal


 * __isoceles triangle:__** a triangle with at least two congruent sides

__**scalene triangle:**__ a triangle with no congruent sides or angles

__**parallelogram:**__ a 4 sided figure with two sets of parallel sides, opposite angles are congruent


 * __rhombus:__** a parallelogram with congruent sides

__**trapezoid:**__ a quadrilateral with only one set of parallel sides

__**parallel**__: lines that are the same direction and the distance apart
 * __perpendicular:__** two lines that intersect to make a right angle, 90 degrees

__**transversal:**__ a line that intersects another line