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**3.**The study of triangles, with emphasis on calculations involving the lengths of sides and the measures of angles**5.**an algebraic expression in which the variables involved have only non-negative integral powers**6.**A number n for which the sum of all the positive integer factors of n which are less than n add up to n is called a number**7.**The y-coordinate in a point (x, y)**8.**a constant number that serves as a measure or some property or characteristic**9.**first person to give the first known proof**10.**a series of well defined steps which give a procedure for solving a type of problem**11.**Identical in shape, although not necessarily the same size.**13.**the first person to compute the decimal expansion of pi**18.**instrument which is based on the principle of trigonometry and is used for measuring angles with a rotating telescope**21.**a proven statement used for proving other statements**23.**The four sections into which the x-y plane is divided by the x- and y-axes.**26.**The first coordinate in an ordered pair**29.**a quantity that can change or take different values

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**1.**the first person to discover the numbers which are not rational**2.**An equation of fractions in the form: a/b = c/d**4.**In a polynomial, the highest power of the variables is known as**6.**The likelihood of the occurrence of an event**12.**the polynomial of degree 1 is called a polynomial**14.**product of the smallest power of each common prime factors in the numbers**15.**. geometry of axioms, theorems, and two-column proofs**16.**the ratio of the areas of two similar triangles is equal to the ratio of the of the corresponding sides**17.**the number of times a particular observation occurs**19.**the value of cos A ,when A increases from 0 degree to 90 degree**20.**an equation which is true for all the values of the variables involved**22.**A u-shaped curve with certain specific properties**24.**a statement accepted as true without any proof**25.**The point at which a parabola makes its sharpest turn**27.**The steepness of a line expressed as a ratio, using any two points on the line.**28.**An irrational number that can be expressed as a radical