3rd Grade Math Worksheets: Geometry

Grade 3 geometry worksheets

Our grade 3 geometry worksheets review two dimensional shapes, particularly circles, triangles, quadrilaterals and polygons.  We also focus on the definition and classification of lines and angles.  The areas and perimeters of rectangular shapes are reviewed, as are the concepts of congruency and  symmetry. 

Basic properties of 2-D shapes


Identifying quadrilaterals
Squares, rectangles, trapezoids, parallelograms & rhombuses

  Identifying quadrilaterals example 

Properties of quadrilaterals
Classify and describe quadrilaterals

  A shape with 4 sides & 4 angles ....

Identify quadrilaterals with 2 pairs of parallel sides

  Parallelogram example

Classify triangles by sides and angles

  Classify triangles example 

Identify and label the parts of a circle

  Parts of a circle example 

Identify regular and irregular polygons

  Polygon example 

Types of polygons  
Classify and draw polygons

  Classify polygons example 

Lines and angles


Lines, segments and rays
Identify lines, segments and rays

  Lines, segments and rays example

Right angles
Identify right angles and compare angles

  Right angles examples

Parallel and perpendicular lines
Identify parallel and perpendicular lines

  Classifying lines example 

Classify angles
Classify angles as straight, right, acute or obtuse

  Classifying angles example 

Use a protractor to draw and measure angles

  Using a protractor example 

Measure angles
Measure and classify angles as right, acute or obtuse

  Measuring angles example 

Lines, segments, rays and angles
Identify and draw lines, segments, rays and angles

  Lines, segments, rays and angles example 

Area and perimeters

Perimeters using a rectangular grid
Find the perimeter of rectangular shapes on a grid

  Perimeter and area of rectangular grids examples 

Areas using rectangular grids
Find the area of rectangles on a grid


Perimeters of irregular shapes
Find the perimeters of irregular shapes

  Perimeter of irregular shapes 

Perimeters of rectangles
Find the rectangle's perimeter

  Perimeter and area of rectangles  
Area of rectangles
Calculate the area of rectangles


Area and perimeters of rectangles
Calculate the area and perimeters of rectangles


Congruency and Symmetry of 2-D shapes


Congruent shapes
Identify shapes with the same size and shape

  Congruent shapes example

Lines of symmetry
Identify and draw lines of symmetry

  Lines of symmetry example

Symmetrical shapes
Draw the other half of an image to form a symmetrical shape

  Draw symmetrical shapes example 

Grade 3 Geometry Worksheet Example

Sample Grade 3 Geometry Worksheet

More geometry worksheets

Browse all of our geometry worksheets, from the basic shapes through areas and perimeters, angles, grids and 3D shapes.

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