Today we will look (carefully) at the arithmetic words beginning with P and Q

**Parallel Lines**lines that never cross, no matter how far they extend; always the same distance apart from each other**Parallelogram**quadrilateral whose opposite sides are parallel and congruent**Pattern**regularly repeated arrangement of letters, numbers, shapes, etc.**Pentagon**polygon with exactly five sides**Percent**ratio that compares a number to 100 using the % symbol**Percent Pie Graph**a circle graph where the sum of the percentages in each section equals 100 percent**Perimeter**distance around a closed figure**Permutation**one of several possible orders for a series of events or items**Perpendicular Lines**intersecting lines that form “square corners” or right angles (90 degrees) where they cross**Pi (π)**the ratio of the circumference of a circle to its diameter; approximately equal to 3.14, or 22/7**Plane Figure**has only length and width; Two-Dimensional or 2D Figure**post meridiem**label for time from noon up to, but not including, midnight**Polygon**plane figure made up of 3 or more straight lines**Positive Number**a number greater than zero**Prime Factor**a factor that is also a prime number**Prime Number**a number that has itself and one as its only factors**Probability**the likelihood that a future event will occur; expressed as a value between 0 and 1, with 0 being impossible and 1 being certain**Product**name of the result obtained by multiplying two or more numbers together**Property of One**any number multiplied by one has itself as the product**Pythagorean Theorem**For any right triangle, the area of a square constructed along the triangle’s longest side (the hypotenuse) is equal to the sum of the area of squares built along the other two sides

**Quadrilateral**a polygon with 4 sides**Quart**standard unit of measure for volume; 32 ounces; slightly more than a liter**Quotient**number resulting from a dividend being divided by a divisor; solution to a division problem

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