## Understanding Quadrilaterals

*(Worksheet)*

**☛Directions**: Fill in the blanks

*①*A simple closed curve made up of only line segments is called a ________.

*②*A _________ of a polygon is a line segment connecting two non- consecutive vertices.

*③*A _______ _______ is a polygon in which no portion of its any diagonal is in its exterior.

*④*A quadrilateral is a polygon having only ________ sides.

*⑤*A ________ __________ is a polygon whose all sides are equal and also all angles are equal.

*⑥*The sum of interior angles of a polygon of n sides is _______ straight angles.

*⑦*The sum of interior angles of a quadrilateral is ______.

*⑧*The sum of exterior angles, taken in an order, of a polygon is _________.

*⑨*_________ is a quadrilateral in which a pair of opposite sides is parallel.

*⑩*__________ is a quadrilateral which has two pairs of equal consecutive sides.

*⑪*A ___________ is a quadrilateral in which each pair of opposite sides is parallel.

*⑫*A _______ is a parallelogram in which adjacent sides are equal.

*⑬*A _________ is a parallelogram in which one angle is of 90°.

*⑭*A __________ is a parallelogram in which adjacent sides are equal and one angle is of 90°.

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