1. Pi (π) Area = πr2 = πd Numeracy and Product Design Circumference
Many products you design will involve circles.
You should all by now be familiar with a very important number to do with circles called….
You can use Pi to find the area or the circumference of a circle.
You need to know these formulae:
Area
= πr2
radius
diameter
Circumference
= πd
Pi (π)
The circumference is the distance round the outside of a circle

2. Numeracy and Product Design
…….
You have 5 minutes to remember Pi to as many decimal places as you can.
Test each other – how far can you get?
Who is the class champion?
If you need it to more decimal places your form tutor has a sheet they can print.
March 14th is National Pi Day…
3:14
This week’s Numeracy Activity is the annual Pi competition.
It’s your job to remember Pi to as many decimal places as you can!