 # Finding Side Length (Given Perimeter)

##### This Finding Side Length (Given Perimeter) worksheet also includes:

Perimeter is the total distance around an object. One can find the perimeter of a rectangle or square by adding all four side lengths together. These worksheets require third graders to find the missing side length, given the perimeter of the figure.

CCSS: Designed

##### Instructional Ideas

• Use as a quick check, extra practice, homework, or quiz
• Advise students to label the side lengths of each figure in order better represent their understanding of solving the problems
• Provide notebook paper for solving
##### Classroom Considerations

• Students must already know how to find perimeter of an object
• Learners should have knowledge of quadrilateral attributes (opposite sides of a rectangle have the same lengths)
• Print all 10 versions of the worksheet or select the version you like and print by page
• Each sheet has 15 problems
##### Pros

• Pupils are compelled to expand their thinking of perimeter by working backward
• Answer keys are provided for each worksheet

• None