##### Across

**6.**the diagonal of a trapezium divides each other proportionally**10.**A mathematical sentence built from expressions using one or more equal signs (=)**11.**distance moved by a rotating wheel in one revolution is equal to the circumference of the wheel**13.**$$$ $$$ what are these curves known as**14.**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)**15.**Polynomial of degree 2 is called quadratic polynomial**18.**The geometric figure formed by two points.**20.**if two circles touch internally, then the distance between their centers is equal to the difference of their

##### Down

**1.**a line intersecting a circle in two points is called a**2.**A quadratic equation can also be solved by the method of completing the square**3.**a list of number in which each term is obtained by adding a fixed number to the preceding them except the first term**4.**the branch of mathematics dealing with limits, derivatives, definite integrals, indefinite integrals, and power series.**5.**name a mathematical procedure which got its named from a persian mathematican AL-KHWARIZMI**7.**a special case of a more general theorem which is worth nothing seprately**8.**If the lines coincide, then there are infinitely many solutions. In this case, the pair of equations is dependent**9.**In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.**12.**The length of the two tangents from an external point to a circle is equal.**16.**the line which intersects the circle at only one point**17.**a shape in which all points are equidistant from the center**19.**a quadrilateral with two pairs of adjacent sides that are congruent.