| Term | Definition |
|---|
| Hypotenuse | the side opposite the right angle |
| Acute Triangle | triangle that has three acute angles |
| Right Triangle | Triangle with one right angle |
| obtuse triangle | triangle that has one obtuse angle |
| equilateral triangle | triangle that has three congruent sides |
| Isosceles triangle | triangle that has at least two congruent sides |
| scalene triangle | triangle that has no congruent sides |
| equiangular triangle | a triangle that has 3 congruent angles |
| 180 degrees | The sum of the angles of a triangle |
| acute | less than 90 degrees |
| obtuse | more than 90 degrees, but less than 180 degrees |
| polygon | a closed plane figure whose sides are segments that intersect only at their end points |
| regular polygon | all sides and all angles have the same measure |
| convex | a polygon in which a line segment lies completely within the polygon |
| concave | a polygon that is not convex |
| pentagon | a five-sided polygon |
| Hexagon | a six-sided polygon |
| heptagon | a seven-sided polygon |
| octagon | an eight-sided polygon |
| nonagon | a nine-sided polygon |
| decagon | a ten-sided polygon |
| elevenagon | an eleven-sided polygon |
| quadrilateral | a four-sided polygon |
| trapezoid | a quadriladeral with exactly one pair of parallel sides |
| parallelogram | a quadriladeral with both pairs of opposite sides parallel |
| rhombus | a parallelagrom with four congruent sides |
| rectangle | a parallelagram with four right angles |
| square | a parallelagram with four congruent sides and four congruent angles |
| 360 degrees | sum of the angles of a quadrilateral |
| area of a parallelagram formula | A= base x height |
| area of a trapezoid formula | A= 1/2(b1 + b2)h |
| circle | all the points in a plane that are the same distance from a fixed point; not a polygon |
| center | the fixed point in the middle of the circle |
| radius | the difference between the center and any point on the circle |
| diameter | the distance across the circle THROUGH THE CENTER |
| circumference | the distance around the circle |
| pi | the ratio of a circle's circumference to its diameter for any circle |
| circumference of a circle formula | C=pi*d OR C=2*pi*r |
| Area of a circle formula | A= pi*r squared |
| Pythagorean theorem | a squared + b squared = c squared |
| Interior Angle | An angle inside of the polygon |
| Exterior Angle | An angle outside of the polygon |
| (n-2) * 180 | Measurement of all interior angles of a Convex polygon |
| (n-2) * 180 / n | Measurement of each interior angle of a regular polygon |
| Regular polygon | Sides are congruent and angles are congruent |
| Foil Method in multiplying binomials | First, Outer, Inner, Last |
| Complementary angles | Two angles whose sum is 90 degrees |
| Supplementary angles | Two angles whose sum measures 180 degrees |
| Verticle angles | When two lines intersect at one point, the angles that are opposite eachother are these angles; These angles are congruent. |
| Hypotenuse | The longest measurement in a right triangle |
| Legs | The sides of a right triangle that form the right angle |
| Dodecagon | A twelve-sided polygon |
| when you find the area | When is the unit squared? |
| Transversal | A line that intersects two or more lines at different points |
| Corresponding angles | Two angles that are in the same postion on different lines intersected by a transversal; They are congruent. |
| Interior angleS | Angles that lay inside the parallel lines |
| Exterior angleS | Angles that lay outside the parallel lines |
| Alternate interior angles | Angles that lay inside the parallel lines and are on opposite sides of the transversal; They are congruent. |
| Alternate exterior angles | Angles that lay outside the parallel lines and are on opposite sides of the transversal; They are congruent. |
| Polynomial | A sum of monomials |
| Term | Each mononial in a polynomial is a ______. |
| Binomial | Has two terms |
| Trinomial | Has three terms |
| Standard form | This is written when the terms are arranged so that the degree of each term decreases (Written according to exponential value from greatest to least) |
| Slope intercept form/ Function form | y= mx + b |
| Formula for slope | m= Y2-Y1 over X2-X1 OR m= rise over run |
| Negative reciprical | When finding PERPENDICULAR slope, use the _______ ________. |
| Input | The first number in a set of coordinates (AKA the domain and X) |
| output | The second number in a set of coordinates (AKA the range and Y) |
| Domain | All of the inputs |
| Range | All of the outputs |
| x- intercept | The place/ coordinate where the line crosses the x axis/ horizontal axis |
| y-intercept | The place/ coordinate where the line crosses the y axis/ vertical axis |
| Slope | The steepness of a line (How steep the line is) |
| Relation | A group of inputs and outputs (A group of coordinates) that can be graphed |
| zero | The x coordinate is always _______ when you are finding the y intercept. |
| 1 squared | 1 |
| 2 squared | 4 |
| 3 squared | 9 |
| 4 squared | 16 |
| 5 squared | 25 |
| 6 squared | 36 |
| 7 squared | 49 |
| 8 squared | 64 |
| 9 squared | 81 |
| 10 squared | 100 |
| 11 squared | 121 |
| 12 squared | 144 |
| 13 squared | 169 |
| 14 squared | 196 |
| 15 squared | 225 |
| 16 squared | 256 |
| 17 squared | 289 |
| 18 squared | 324 |
| 19 squared | 361 |
| 20 squared | 400 |
| 1/2 | .5 |
| 1/4 | .25 |
| 3/4 | .75 |
| 1/8 | .125 |
| 3/8 | .375 |
| 5/8 | .625 |
| 7/8 | .875 |
| 1/5 | .2 |
| 2/5 | .4 |
| 3/5 | .6 |
| 4/5 | .8 |
| 1/3 | .3 repeated |
| 2/3 | .6 repeated |
Combine with other sets
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