3-dimensional shapes have faces, edges and vertices. Volume is the space contained within a 3D shape. Surface area is the sum of the area of each face. 3D shapes can be viewed from different points.
Plans and elevations are 2D (two-dimensional)Having only two dimensions, usually length (or height) and width. drawings of a 3D (three-dimensional)An object with width, height and depth, eg a cube. shape.
A plan is a scale diagramA diagram drawn where each length represents an exact magnitude in direct proportion. Eg, a scale of 1:10 in a diagram means that 1 cm will represent a force of 10 N. showing a 3D shape when it is looked at from above.
An elevation is the view of a 3D shape when it is looked at from the side or from the front.
When an architect designs a building they will draw the plans and elevation of a building.
Question
Draw the 3D shape which has the following plan and elevations: