Square
A square is a four-sided polygon with four right angles and four equal sides. Each interior angle of a square measures 90 degrees, and all four sides have the same length.
Properties of a Square
- Four equal sides
- Four right angles
- Diagonals are equal in length and bisect each other at right angles
- Each interior angle measures 90 degrees
Formulas for a Square
Area of a square: A = side × side (or A = s2)
Perimeter of a square: P = 4 × side
Example
If the side of a square is 5 units, then:
Area = 5 × 5 = 25 square units
[Square] Related Worksheets and Study Guides:
.◂Math Worksheets and Study Guides Third Grade. Solids and Faces
Study Guide
Solids and Faces 
Worksheet/Answer key
Solids and Faces Worksheet/Answer key
Solids and Faces Worksheet/Answer key
Solids and Faces Worksheet/Answer key
3D Solids Worksheet/Answer key
3D Space
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyThe resources above cover the following skills:
Geometry (NCTM)
Analyze characteristics and properties of two- and three-dimensional geometric shapes and develop mathematical arguments about geometric relationships.
Identify, compare, and analyze attributes of two- and three-dimensional shapes and develop vocabulary to describe the attributes.
Classify two- and three-dimensional shapes according to their properties and develop definitions of classes of shapes such as triangles and pyramids.
Use visualization, spatial reasoning, and geometric modeling to solve problems.
Recognize geometric ideas and relationships and apply them to other disciplines and to problems that arise in the classroom or in everyday life.