A cylinder is a 3D shape with a circular cross-section and a ... The measurement shown is the diameter of the circular face, so the radius is 3.5 cm. Substituting the values \(h = 16~cm\) and ...

A polygon is a 2D shape with straight sides that meet at vertices. Polygons have names that show the number of sides they have. A three-dimensional (3D) shape is a solid shape. 3D shapes have ...