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**3.**Mathematician with whose name Basic Proportionality Theorem is known.**4.**Sine of (90 degree - 0).**5.**For any two numbers, HCF X LCM = ________ of numbers.**6.**Method of solving a pair of linear equation in which one variable is eliminated by making its cofficients equal in the two equations.**7.**The ratio of the areas of two similar triangles is equal to the ratio of the ________ of their corresponding sides.**9.**A pair of lines representing a pair of linear equations in two variables having no solution.**11.**Two figures with same shape and size.**12.**Type of solutions of pair of linear equations represented by two intersecting lines.**13.**The numbers that include rational and irrational number.

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**1.**The numbers that have either terminating or non-terminatig repeating decimal expansion.**2.**The degree of variables in a linear equation.**5.**Mathematician who proved that in a right triangle, the square of the hypotenuse is equal to the sum of the square of the other two sides.**6.**Triangles whose corresponding angles are equal.**8.**________ division algorithm is used to find the HCF of two positive numbers.**9.**The number that has exactly two factors, one and the number itself.**10.**Graphical representation of alinear equation in teo variable.