A must download for any Geometry student!! Finds the area of rectangle, parallelogram, square, trapezoid, circle, triangle, ellipse, equliateral triangle, triangle(3 sides), regular polygon. Finds the perimeter of square, rectangle, triangle, circle, ellipse. Finds the surface area of cylinder, shpere, rectangular prism, triangular prism, cube, cylinder, prism, pyramid, cone. Finds the volume of cube, rectangular prism, cylinder, pyramid, prism, cone sphere, triangular prism. Contains MANY formulas used for polygons in Geometry!!