# Mathematics

##### Across
1. 2. 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.
2. 5. The ________ relation relates mean, median and mode of data.o
3. 7. Type of solutions of pair of linear equations represented by two intersecting lines.
4. 11. Method of solving a pair of linear equation in which one variable is eliminated by making its cofficients equal in the two equations.
5. 12. Two figures with same shape and size.
6. 16. A pair of lines representing a pair of linear equations in two variables having no solution.
7. 17. The ratio of the areas of two similar triangles is equal to the ratio of the ________ of their corresponding sides.
8. 18. The numbers that have either terminating or non-terminatig repeating decimal expansion.
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1. 1. The numbers that include rational and irrational number.
2. 3. Branch of Mathematician in which we study the relationship between the sides and angles of a triangle.
3. 4. Cosine of 90 degree.
4. 6. Triangles whose corresponding angles are equal.
5. 8. Sine of (90 degree - 0)
6. 9. Graphical representation of alinear equation in teo variable.
7. 10. The degree of variables in a linear equation.
8. 13. Mathematician with whose name Basic Proportionality Theorem is known.
9. 14. ________ division algorithm is used to find the HCF of two positive numbers.
10. 15. The number that has exactly two factors, one and the number itself.
11. 16. For any two numbers, HCF X LCM = ________ of numbers.