Volume of prism
Area of cross * length
Volume of cylinder
Pie r squared * height
Volume of pyramid
1/3 * base area * height
Volume of cone
1/3 * area of base * height
Volume of sphere
4/3 pie r cubed
Surface area of sphere
4 pie r squared
Surface area of cylinder
2 pie r squared + 2 pie r height
Surface area of cone
Pie r squared + pie r length(diagonal)
Why is this an estimate?
Histograms
We are using grouped data. We dont know how many___ are actually between the cut value