Find the length and width of a rectangle if its perimeter is 20cm and area is 21cm2.
What are the dimensions of a rectangle whose perimeter is 50cm and area is 100cm2.
Find the dimensions of a rectangle whose perimeter is 47cm and area is 135cm2.
Find the dimensions of all the rectangles whose perimeters in cm are twice the value of their areas in cm2.
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Teacher, do your students have access to computers such as tablets, iPads or Laptops? This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments:
However it would be better to assign one of the student interactive activities below.
Here are URLs which will take them to related student activities.