Abstract: This paper mainly discuss new model for the qualitative spatial reasoning by the combination of the MBR and rectangle algebra which base on the cardinal direction relations. Using this model ...

The diagrams of shapes and objects in this topic are illustrative and not necessarily drawn to scale. Answers to practical problems are specified to an accuracy suitable for the context, for example, ...

Finding the perimeter of a rectangle is an essential skill that many students learn early in their mathematical education. The perimeter is the total length of all sides of a geometric figure and can ...

This page includes a brief guide to give upper KS2 students an overview of area and perimeter, and you can download a 14-page PDF worksheet and separate answer sheet too. The questions have been ...