Finding Missing Sides

Worksheet Description

This worksheet challenges students to determine a missing side length when given the total perimeter of a shape. Various polygons, including pentagons, hexagons, and quadrilaterals, are presented with some sides already measured. Students must subtract the known side lengths from the total perimeter to find the missing value. This practice encourages logical thinking and reverse calculations.

Engaging with this worksheet develops algebraic thinking, as students must manipulate given numbers to solve for unknowns. It improves subtraction skills and reinforces the idea that perimeter is a sum of all side lengths. Understanding how to find missing side lengths is useful in practical situations, such as estimating building materials or constructing shapes. By solving these problems, students build confidence in both perimeter calculations and logical reasoning.