Complete each of the following, so as to make a true statement:(i) A quadrilateral has ________ sides.(ii) A quadrilateral has ________angles.(iii) A quadrilateral has ________, no three of which are ________.(iv) A quadrilateral has ________diagonals.(v) The number of pairs of adjacent angles of a quadrilateral is ________.(vi) The number of pairs of opposite angles of a quadrilateral is ________.(vii) The sum of the angles of a quadrilateral is ________.(viii) A diagonal of a quadrilateral is a line segment that joins two ________ vertices of the quadrilateral.(ix) The sum of the angles of a quadrilateral is ________ right angles.(x) The measure of each angle of a convex quadrilateral is ________ 180°.(xi) In a quadrilateral the point of intersection of the diagonals lies in ________ of the quadrilateral.(xii) A point os in the interior of a convex quadrilateral, if it is in the ________ of its two opposite angles.(xiii) A quadrilateral is convex if for each side, the remaining ________ lie on the same side of the line containing the side.