The teachers’ library›Solid geometryPyramidV=31BhV=13BhSA=B+21PℓSA=B+12PℓOpen on a new board The board is kept in this browser only, like your other boards. On any board, the Library button adds this too.More in Solid geometryCubeRectangular prismPrismCylinderConeFrustum of a coneSphereHemisphere