Fill in the blanks:
(i) A cuboid has ...... rectangular faces ...... edges and ...... vertices.
(ii) A cylinder has ...... curved face and ...... flat faces.
(iii) A cone has one ...... face and one ...... face.
(iv) A sphere has a ...... surface.
(i) A cuboid has 6 rectangular faces, 12 edges and 8 vertices.
Rectangular faces: ABCD, DCHG, ABEF, DAHE, HEGF and CBFG.
(ii) A cylinder has 1 curved face and 2 flat faces.
(iii) A cone has one curved face and one flat face.
(iv) A sphere has a curved surface.