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 Complete the sentences below. If you need help, review these examples of what quadrilaterals are. 1. A quadrilateral is a   polygon   with   4   sides. 2. Perpendicular means at   right angles    or at   90   degrees. 3. Two types of quadrilaterals with right-angled vertices are   rectangles   and   squares   . 4. A parallelogram has two pairs of sides that are   parallel   , and opposite angles that are equal. 6. A rhombus is a special type of parallelogram because it has   two   pairs of parallel sides. 9. The only quadrilateral that has diagonals bisecting each other perpendicularly is called a   square   . 10. A square is always a rectangle, because a square is a special type of rectangle that has   four   equal sides. 11. A rectangle is not always a square, because a rectangle does not necessarily have sides that are all   equal in length    . 14. A   kite   is a quadrilateral that has two pairs of equal length sides and one pair of opposite equal angles. 15. A trapezoid is a quadrilateral having   one   pair of parallel sides.

You will find another worksheet on quadrilaterals here where shapes must be matched with the type of quadrilateral.

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## Related Resources

The various resources listed below are aligned to the same standard, (5G03) taken from the CCSM (Common Core Standards For Mathematics) as the Geometry Worksheet shown above.

Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles.