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**2.**The degree of variables in a linear equation.**3.**The number that has exactly two factors, one and the number itself.**4.**Mathematician with whose name Basic Proportionality Theorem is known.**9.**A pair of lines representing a pair of linear equations in two variables having no solution.**10.**Triangles whose corresponding angles are equal.**11.**Two figures with same shape and size.**13.**Graphical representation of alinear equation in teo variable.

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**1.**Sine of (90 degree - 0).**3.**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.**5.**The ratio of the areas of two similar triangles is equal to the ratio of the ________ of their corresponding sides.**6.**The numbers that have either terminating or non-terminatig repeating decimal expansion.**7.**Method of solving a pair of linear equation in which one variable is eliminated by making its cofficients equal in the two equations.**8.**Type of solutions of pair of linear equations represented by two intersecting lines.**9.**For any two numbers, HCF X LCM = ________ of numbers.**10.**________ division algorithm is used to find the HCF of two positive numbers.**12.**The numbers that include rational and irrational number.