Complete each of the following, so as to make a true statement:
(i)A quadrilateral hassides.
(ii)A quadrilateral hasangles.
(iii)A quadrilateral has, no three of which are .
(iv)A quadrilateral hasdiagonals.
(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 twovertices of the quadrilateral.
(ix)The sum of the angles of a quadrilateral isright angles.
(x)The measure of each angle of a convex quadrilateral is180°.
(xi)In a quadrilateral the point of intersection of the diagonals lies inof the quadrilateral.
(xii)A point is in the interior of a convex quadrilateral, if it is in theof its two opposite angles.
(xiii)A quadrilateral is convex if for each side, the remaininglie on the same side of the line containing the side.