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### 15 Cards in this Set

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 Angle The figure formed when 2 rays meet at a common endpoint called a vertex. Common factor A number that is a factor of two or more numbers. Ex. for 4, 12, & 16, 4 is a common factor Complementary angles Two angles whose sum = 90 Diameter A line segment that passes through the center of a circle and has its endpoints on the circle. The diameter describes how wide the circle is. Greatest common factor (GCF) The largestingle factor for 2 or more numbers. Ex.- The GCF for 12, 24, & 48 is 12 Hexagon A polygon with six sides. Integers All whole numbers (both positive and negative) and zero. Mean The sum of a group of numbers divided by the number of numbers. Also known as the average. Ex. - 2+6+4+5+3=20 20 divided by 5 =4 4 is the mean. Median A value found by ordering a group of data from least to greatest and choosing the middle value of the group. Ex. - 20, 23, 42, 64, 78 You can see that 42 is the middle number. Ex. - 20, 23, 42, 64 no middle so we will take the average of the two middle #'s. 23+42=65 65 divided by 2= 32.5 Mode In a group of values, the value that occurs most often. Ex. - 25,46,89,25,89,95,34,25 Mode is 25 Numerator The part of a fraction that stands for how many parts of a whole or group are included in the fraction. Ex. - 5/6 5 is the Numerator Quadrilateral A polygon that has four sides Parallelogram A quadrilateral with two pairs of congruent, parallel sides. Rectangle A parallelogram with four right angles. Sample Part of the population that is studied to find the characteristics of the whole population.