# Mathematics

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