Q. 34.5( 4 Votes )

# Complete each of

Answer :

(i) A quadrilateral has *Four* sides.

(ii) A quadrilateral has *Four* angles.

(iii) A quadrilateral has *Four* vertices, no three of which are *collinear.*

(iv) A quadrilateral has *two* diagonals.

(v) The number of pairs of adjacent angles of a quadrilateral is *two.*

(vi) The number of pairs of opposite angles of a quadrilateral is *two.*

(vii) The sum of the angles of a quadrilateral is 360°.

(viii) A diagonal of a quadrilateral is a line segment that joins two *opposite* vertices of the quadrilateral.

(ix) The sum of the angles of a quadrilateral is *four* right angles.

(x) The measure of each angle of a convex quadrilateral is *less than* 180°.

(xi) In a quadrilateral the point of intersection of the diagonals lies in interior of the quadrilateral.

(xii) A point os in the interior of a convex quadrilateral, if it is in the interiors of its two opposite angles.

(xiii) A quadrilateral is convex if for each side, the remaining vertices lie on the same side of the line containing the side.

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