35
3-D Shapes
Continuous Assessment
1. What am I?
(a) Ihavenovertices,onecurvedsurfaceandtwoatfaces.
I am a __________________________
(b) All my 6 faces are square and I have 8 vertices and 12 edges.
I am a __________________________
(c) I have 3 pairs of equal and opposite faces, 8 vertices and 12 edges but I am not a cube.
I am a __________________________
(d) Ihaveonlyonevertex,onecurvedsurfaceandaatface.
I am a __________________________
(e) I am a 3-D object and I am round.
I am a __________________________
(f) Ihavetwoatroundfaces,onecurvedsurfaceandnovertices.
I am a __________________________
2. Write 'true' or 'false' in the boxes.
(a) A 2-D shape has thickness.
(b) A square is a 3-D shape.
(c) A cuboid has 3 dimensions.
(d) A sphere is a 3-D shape which is round.