Finding the Missing Length From the Perimeter WORKSHEET

This worksheet extends learners' knowledge of perimeter by challenging them to apply their knowledge to find missing lengths in triangles, rectangles and other rectilinear shapes when given the perimeter.
Students begin with triangles in section A and will progressively tackle more complex problems.
In section B learners will find missing lengths in rectangles when one dimension is given along with the perimeter.

Your learner's problem solving ability will be tested in section C as learners are challenged to calculate the missing lengths of irregular hexagons and two irregular octagons. These problems require students to be able to calculate missing lengths in rectilinear shapes.