New Scientist on MSN8d
New device can scan your face in 3D from hundreds of metres away
A lidar scanner has a resolution so high it can image ridges and indentations of only 1 millimetre on objects hundreds of ...
BBC7y
3-dimensional shapes - AQA
If the base of the pyramid is a regular polygon, each of the triangular faces will be identical, so the total area of the triangular faces can be calculated by finding the area of one face and ...
BBC1y
Sort 2D and 3D shapes
A three-dimensional (3D) shape is a solid shape ... 3D shapes have different properties to 2D shapes. Faces - A face is a flat surface on a 3D shape. Edges - An edge is where two faces meet.