Pocket Geometry was voted #11 in Math category in Mobile Learning in Action! See all apps here: http://bestonlineuniversities.com/favorite-mobile-learning-apps/

Simple and easy to use geometry app that you can carry in your pocket!
Calculate the perimeter, area, surface or volume of various geometric shapes.
Shapes includes 2D (square, rectangle, circle, triangle, trapezoid, parallelogram)
and 3D (cone, pyramid, sphere, cube, cylinder and rectangular prism, right triangular prism, torus)