# maths

##### Across
1. 1. A quadratic equation can also be solved by the method of completing the square
2. 6. a quadrilateral with two pairs of adjacent sides that are congruent.
3. 7. Polynomial of degree 2 is called quadratic polynomial
4. 9. a list of number in which each term is obtained by adding a fixed number to the preceding them except the first term
5. 12. a special case of a more general theorem which is worth nothing seprately
6. 14. a line intersecting a circle in two points is called a
7. 15. the branch of mathematics dealing with limits, derivatives, definite integrals, indefinite integrals, and power series.
8. 16. If p(x) is a polynomial in x, the highest power of x in p(x) is called the degree of the polynomial p(x)
9. 18. In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
##### Down
1. 2. The length of the two tangents from an external point to a circle is equal.
2. 3. A mathematical sentence built from expressions using one or more equal signs (=)
3. 4. If the lines coincide, then there are infinitely many solutions. In this case, the pair of equations is dependent
4. 5. distance moved by a rotating wheel in one revolution is equal to the circumference of the wheel
5. 8. \$\$\$ \$\$\$ what are these curves known as
6. 9. name a mathematical procedure which got its named from a persian mathematican AL-KHWARIZMI
7. 10. the diagonal of a trapezium divides each other proportionally
8. 11. the line which intersects the circle at only one point
9. 13. The geometric figure formed by two points.
10. 15. a shape in which all points are equidistant from the center
11. 17. if two circles touch internally, then the distance between their centers is equal to the difference of their