This interactive feature illustrates Archimedes' basic approach to calculating pi. It finds an approximation by determining the length of the perimeter of a polygon inscribed within a circle and ...

Archimedes' method finds an approximation of pi by determining the length of the perimeter of a polygon inscribed within a circle (which is less than the circumference of the circle) and the ...

•3.7(B) - determine the perimeter of a polygon or a missing length when given perimeter and remaining side lengths in problems •4.1(A) - apply mathematics to problems arising in everyday life ...

Solving 'algebraic' problems - Eduqas Example - finding the perimeter of a rectangle. Algebra problems can relate to any area of maths. Problems often include a mix of algebra, number and geometry.

Make sure you don’t miss out one side, then stop when you get back to the mark. So, the perimeter of this polygon is 36! 36 thingmys. Crow: ... For example, the area of a right angled triangle.

For example, consider a regular polygon of "radius" r, ... The area and perimeter ratios are shown and as n, the number of sides, gets larger we get a better approximation to π=3.14159 ...