Year 9 Maths

So far this year we have been learning many things, this past week we have been learning area all though I learnt it in year 7/8. It is pretty simple you only need to know how to do multiplication. For the answer for a simple square you would just have to times the length x width then add the units squared. Units can be cm, m, mm ect..  An area is the inside of a 2d shape. Volume is the inside of a 3d shape.  One of the only shapes that doesn't really have a perimeter is a circle you would call the perimeter of a circle a circumference. I would like to learn some more complicated maths and some algebra. 

*example worksheet