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**1.**A quadratic equation can also be solved by the method of completing the square**6.**a quadrilateral with two pairs of adjacent sides that are congruent.**7.**Polynomial of degree 2 is called quadratic polynomial**9.**a list of number in which each term is obtained by adding a fixed number to the preceding them except the first term**12.**a special case of a more general theorem which is worth nothing seprately**14.**a line intersecting a circle in two points is called a**15.**the branch of mathematics dealing with limits, derivatives, definite integrals, indefinite integrals, and power series.**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)**18.**In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

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**2.**The length of the two tangents from an external point to a circle is equal.**3.**A mathematical sentence built from expressions using one or more equal signs (=)**4.**If the lines coincide, then there are infinitely many solutions. In this case, the pair of equations is dependent**5.**distance moved by a rotating wheel in one revolution is equal to the circumference of the wheel**8.**$$$ $$$ what are these curves known as**9.**name a mathematical procedure which got its named from a persian mathematican AL-KHWARIZMI**10.**the diagonal of a trapezium divides each other proportionally**11.**the line which intersects the circle at only one point**13.**The geometric figure formed by two points.**15.**a shape in which all points are equidistant from the center**17.**if two circles touch internally, then the distance between their centers is equal to the difference of their