of the area of the circle. \(A = \frac{135}{360} \times π \times 4^2\) \(A = 18.85 (2 d.p.)\) Calculate the perimeter of the sector. The perimeter is made up of an arc and two straight sides.

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 ...

Polygons are multi-sided ... 2-dimensional shapes are flat. The perimeter of a 2D shape is the total distance around the outside of the shape. The area of a 2D shape is the space inside the ...

So, the perimeter of this polygon is 36! 36 thingmys ... We also give the formula for the area of a triangle. This clip is from the series Kick Sum Maths. This clip can lead to discussion of ...