Surface Area and Volume Formulas
2D Shapes
Generally (regular polygon): A = ½aP
Shape | Formula |
|---|---|
Triangle | ½bh |
Square/Rectangle | lw |
Rhombus/Kite/Square | (d1d2)/2 |
Parallelogram | bh |
Trapezoid | [(b1+b2)/2]h |
Circle | πr² |
3D Shapes
Shape | Surface Area | Volume |
|---|---|---|
Right Prism | Ph + 2B | Bh |
Oblique Prism | 2AParallelogram + 2ARect + 2B | Bh |
Right Cylinder | 2πrh + 2πr² | πr²h |
Pyramid | ½Pl + B | ⅓Bh |
Cone | πrl + πr² | ⅓πr²h |
Sphere | 4πr² | ⁴⁄₃πr³ |