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Cartesian coordinate system

a method of locating points in the plane that uses pairs of numbers denoting distances along two fixed intersecting number lines, called axes

centimeter

Metric unit of measure that equals 10 millimeters

chord

a line segment whose endpoints are on a circle

circle

a planar geometric figure in which every point on the figure is the same distance from a point at the center

circumference

the distance around a circle, also called the perimeter of the circle

coefficient

any factor or any product of factors of a product

commutative property

a property of real numbers that states that for any real numbers a and b, a + b = b + a and a x b = b x a

complex fraction

a fraction whose numerator or denominator (or both) contains a fraction

concave polygon

a polygon in which one or more interior angles have a measure greater than 180 degrees

conditional equation

an equation whose truth or falsity depends on the numbers used to replace the variables in the equation