How do you find the area of a circle? ... If the area is also supposed to be πR 2, I can make a plot of area vs. diameter squared. The slope of this line should be π/4.

The constant π is traditionally defined as the ratio of a circle's circumference to its diameter. As I pointed out in the first installment of this series, the fact that this is well-defined (i.e ...

National 4; Perimeter and area Circumference and area of a circle. In this National 4 Lifeskills Maths study guide, you can revise how to find the perimeter and area of triangles, quadrilaterals ...