资讯

BBC2 年
Sort 2D and 3D shapes
Save guides, add subjects and pick up where you left off with your BBC account. Two-dimensional (2D) shapes are completely flat. They cannot be picked up. A polygon is a 2D shape with straight ...
BBC8 个月
Sort 2D and 3D shapes
Save guides, add subjects and pick up where you left off with your BBC account. Two-dimensional (2D) shapes are completely flat. They cannot be picked up. A polygon is a 2D shape with straight ...