Identify Quadrilaterals Worksheets
How to Identify Quadrilaterals  Quadrilaterals are polygons that have four sides. There are different types of quadrilaterals; below, we have discussed the commonly known quadrilaterals. A parallelogram is a quadrilateral that has both pairs of opposite sides parallel. Its opposite sides and angles are congruent. Its diagonals bisect each other, and adjacent angles are supplementary. A rectangle is a quadrilateral that has all four angles as rightangles. The diagonals of a rectangle are congruent. Also, all parallelograms and quadrilaterals are rectangles, but not all quadrilaterals and parallelograms are rectangles. A rhombus is a quadrilateral with all four congruent sides. The diagonals of a rhombus intersect at the right angles. A square is a parallelogram with all four congruent sides and right angles. A trapezoid is a quadrilateral with exactly one pair of parallel sides. A quadrilateral with one pair of parallel sides is known as the trapezoid. An isosceles trapezoid is the one that has congruent nonparallel sides. A kite is a quadrilateral that has two pairs of adjacent congruent sides.

Intermediate Lesson
Demonstrates how to draw various quadrilaterals. Example: Draw a four sides figure with two pairs of parallel side. A parallelogram is a quadrilateral with two pairs of parallel sides. The opposite sides and angles are congruent.
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Independent Practice 1
A really great activity for allowing students to understand the concept of classifying quadrilaterals.
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Independent Practice 2
Students draw and identify quadrilaterals in 20 assorted problems. The answers can be found below.
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Homework Worksheet
Students are provided with 12 problems to achieve the concepts of classifying quadrilaterals.
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Blaise Pascal
", the 17thcentury French mathematician, said that if Cleopatra's nose had been differently shaped  aquiline, for instance  or if Cromwell's bladder had not been obstructed and he had lived longer, the history of the world would have been altered."