Circles
π is the Greek letter p or "pi"
In a circle, π is just how many times the distance across a circle will fit round the outside of the circle, which is a little over three
The normal approximations for π are 3.14 or 22/7
We have some formulae to remember:
In a circle, π is just how many times the distance across a circle will fit round the outside of the circle, which is a little over three
The normal approximations for π are 3.14 or 22/7
We have some formulae to remember:
- diameter = twice the radius
- radius = half the diameter
- circumference = pi x diameter
C = πd
- area = pi x radius squared
A = πrē