Finding the Missing Side Worksheet Download
This math worksheet practices finding a missing side length on a rectilinear figure, the step that comes before finding its area or perimeter. Each L-shape or step shape has one or two sides marked with ? or a letter. The short sides along one edge add up to the long side across from them, so a missing side is found by subtracting (12 - 5 = 7) or by adding the short sides. The answer key shows the working.
Sheet Information >
Finding the Missing Side
Each worksheet has 8 L-shaped and step-shaped figures with one or two side lengths missing. Students find each missing side from the sides they know.
About this worksheet
Each worksheet has 8 L-shaped and step-shaped figures with one or two side lengths missing. Students find each missing side from the sides they know.
Student objectives
- Find a missing side of an L-shape by subtracting from the long side across from it
- Find a long side by adding the short sides across from it
- Find two missing sides on one figure, one going across and one going up and down
Everyday practice
- Measuring an L-shaped room for new carpet
- Working out how long a wall is from the walls you can measure
- Fitting a shelf into a nook