Geometry: Shapes, Perimeter & Area Worksheets — Math Worksheets for 3rd Graders
Quadrilaterals and their attributes, perimeter of shapes and rectangles, and area with square units.
11 topics, each with up to 15 printable worksheets and answer keys. Start with Quadrilateral or Not and work down the list, or jump to the skill your child needs.
Quadrilateral or Not?
Decide whether a drawn shape is a quadrilateral by counting its sides and corners.
Quadrilaterals and Their Attributes
Count sides, corners, right angles and equal sides, and see how squares, rectangles and rhombuses are related.
Perimeter: Add the Sides
Find the perimeter of triangles, quadrilaterals and other polygons by adding the side lengths.
Perimeter of Rectangles
Find the perimeter of a rectangle from its length and width.
Perimeter on a Grid
Find the perimeter of a shape drawn on a grid by counting the units along its edges.
Perimeter: Find the Missing Side
Use the perimeter and the known sides to find one missing side length.
Area: Count the Squares
Find the area of a shape by counting the unit squares that cover it.
Area of Rectangles
Find the area of a rectangle by multiplying its length by its width.
Area on a Grid
Find the area of a shape drawn on a grid by counting the whole squares inside it.
Area: Find the Missing Side
Use the area and one side of a rectangle to find the other side.
Area and Perimeter of Rectangles
Find the area or the perimeter of a rectangle, one question at a time.
More 3rd grade math worksheets
Place Value & Rounding, Skip Counting & Patterns, Addition, Subtraction, Multiplication, Division, Order of Operations & Properties, Fractions, Measurement, Telling Time, Data & Graphing, Word Problems