Equation to find area
- equation to find area of a cylinder
- equation to find area of equilateral triangle
- equation to find area of rhombus
- equation to find area of trapezium
- equation to find area of trapezoid
- equation to find area of parallelogram
- equation to find area of a square
- equation to find area of rectangle
- equation to find area of triangle
- equation to find area of a circle
