Quadrilaterals: Rhombus, Rectangle and Square
Print 3rd grade quadrilateral worksheets: name 8 shapes on a dot grid, then sort rhombuses, rectangles, squares and other quadrilaterals. 12 versions.
Worksheet version 1 of 12. The answer key matches the current version.
Count the dots to compare side lengths and look for square corners. Use the most exact name from the word bank.
Part A. Write the name of each shape.
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Word bank: square, rectangle, rhombus, parallelogram, trapezoid, quadrilateral, triangle, pentagon
Part B. Write the letter of every shape that belongs in each group. A shape can go in more than one group.
About this worksheet
A quadrilateral is any closed shape with 4 straight sides. Some quadrilaterals have special names. A rhombus has 4 equal sides. A rectangle has 4 right angles. A square has both, so a square is also a rhombus and a rectangle. A parallelogram has two pairs of parallel sides, and a trapezoid has exactly one pair.
Every shape sits on a dot grid, so children can check by counting instead of guessing. Count the dots along each side to compare lengths, and look for corners that match the corner of a piece of paper. Each version has 8 shapes, with a triangle and a pentagon as non-examples, and some versions turn a square or a rectangle on its side.
In the sorting part, a square belongs in three groups: rhombus, rectangle and square. Parallelograms, trapezoids and other four-sided shapes go in "other quadrilateral". The triangle and the pentagon go in no group, because they are not quadrilaterals.
Practice aligned to CCSS 3.G.A.1.
Before this: 2nd grade shapes and equal shares. Next: perimeter and missing sides, then 4th grade angles and lines. More practice: area and perimeter worksheets and 3rd grade math worksheets.
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