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acute triangle
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A triangle containing three angles that each measure less than 90 degrees.
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angle
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A figure formed at the intersection of two lines.
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arc
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A portion of the edge of a circle.
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chord
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A segment connecting two points on a circle.
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circle
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The figure formed by the group of points that are an equal distance from a point, or center.
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CNC programmer
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The person responsible for the creation of a part program. The part programmer translates the workpiece design into program instructions for the CNC machine.
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cosine
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In a right triangle, the ratio of the side adjacent the angle and the hypotenuse of the triangle.
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decimal
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A representation of a fraction whose denominator is some power of 10.
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denominator
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The expression in the bottom location of a fraction, below the fraction bar.
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diameter
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The distance from one edge of the circle to the opposite end through the center.
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division
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An operation that determines how many times a quantity is contained in another.
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divisor
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The quantity by which a number is divided. The divisor resides in the denominator of a fraction.
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equilateral triangle
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A triangle with three equal sides.
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exponent
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A number or symbol that indicates the power to which an expression is raised.
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hypotenuse
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In a right triangle, the side opposite the right angle.
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inverse
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A fraction obtained by reversing, or inverting, the numerator and denominator. 4/5 is the inverse of 5/4.
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inverse operation
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An operation that counteracts or undoes another.
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isosceles triangle
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A triangle with two equal sides.
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least common denominator
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The least common factor shared by two or more numbers that is used to find equivalent fractions.
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multiplication
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An operation that describes the repetitive addition of numbers.
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numerator
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The expression in the top location of a fraction, above the fraction bar.
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obtuse triangle
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A triangle with one angle that is greater than 90 degrees.
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percent
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One part in a hundred; the amount per hundred.
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product
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The result of a multiplication operation.
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Pythagorean theorem
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A mathematical rule describing how sides of a right triangle are related. The sum of the square of both sides equals the square of the hypotenuse.
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quotient
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The result of a division operation.
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radius
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The distance from the center to the edge of a circle.
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ratio
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The relationship between two quantities expressed as a fraction.
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right triangle
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A triangle containing an angle that measures exactly 90 degrees.
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scalene triangle
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A triangle with no two equal sides.
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scientific notation
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A system of condensing powers of ten.
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sine
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In a right triangle, the ratio of the side opposite an angle and the hypotenuse of the triangle.
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tangent
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In a right triangle, the ratio of the sides opposite and adjacent to the angle in question.
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tolerance limit
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The boundaries of allowable variation from a specified dimension.
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triangle
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A three-sided figure determined by connecting three points that are not part of the same line.
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trigonometric ratio
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A ratio that describes a relationship between sides and angles of triangles.
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vertex
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The point where the two sides of an angle or triangle intersect.
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