use models to determine the formulas for the perimeter of a rectangle (_l_ + _w_ + _l_ + _w_ or 2_l_ + 2_w_), including the special form for perimeter of a square (4_s_) and the area of a ...

Before starting this guide, it may be helpful to read the guide from Module 3 (M3) on perimeter ... the volume and surface area of cones and spheres will appear on the formula sheet provided ...

Save guides, add subjects and pick up where you left off with your BBC account. 1. Calculate the lengths of the missing sides. The total height of the shape is 10 m, subtracting 6 m leaves us with ...