资讯

BBC3 个月
What are 3D shapes?
3D shapes, they have 3 dimensions ... which we know from its name. The other four faces are all triangles. The shapes with 8 vertices are the cube and the cuboid. The cube has 6 faces all ...
BBC4 年
What are 3D shapes?
3D shapes, they have 3 dimensions ... which we know from its name. The other four faces are all triangles. The shapes with 8 vertices are the cube and the cuboid. The cube has 6 faces all ...