Common Math Vocabulary
 __ 1 Acute angle A. numbers multiplied __ 2 Difference B. answer to a division problem __ 3 Line of Symmetry C. numbers subtracted __ 4 Obtuse angle D. four sided figure __ 5 Prime number E. numbers added together __ 6 Product F. only one and itself go into it. __ 7 Quadrilateral G. line that divides a mirror image __ 8 Quotient H. an angle less than 90 degrees __ 9 Right angle I. an angle greater than 90 degrees __ 10 Sum J. an angle that is exactly 90 degrees
 __ 11 Denominator A. lines that meet at 90 degrees __ 12 Intersect B. lines that cross __ 13 Mean C. two or more lines that never cross __ 14 Median D. number on top of a fraction __ 15 Mode E. number on the bottom of a fraction __ 16 Numerator F. parts of 100 __ 17 Parallel G. the average __ 18 Percent H. the most often occurring number in a set __ 19 Perpendicular I. the number in the middle __ 20 Slope J. rise over run
 __ 21 Chord A. Distance all the way around a circle __ 22 Circumference B. Distance from the middle of a circle to circle __ 23 Congruent C. Distance across a circle, going through the center __ 24 Diameter D. A flat, 2-d surface __ 25 Pi E. Ratio between the circumference and the diameter __ 26 Plane F. A line that touches a circle, but doesn't go through __ 27 Radius G. A line going through a circle __ 28 Secant H. An angular point __ 29 Tangent I. The same shape __ 30 Vertex J. a line inside of a circle whose endpoints are on the circle
 __ 31 Decagon A. 5 sided figure __ 32 Dodecagon B. 7 sided figure __ 33 Equilateral Triangle C. 6 sided figure __ 34 Heptagon D. 9 sided figure __ 35 Hexagon E. 8 sided figure __ 36 Isosceles Triangle F. 10 sided figure __ 37 Nonagon G. 12 sided figure __ 38 Octagon H. Two sides the same length __ 39 Pentagon I. All sides the same length __ 40 Scalene Triangle J. No sides the same length
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