Q.1. Circle the 3D shapes that stack.
Q.2. Pick the 3D shapes that slide.
Q.3. Find out the 3D shapes that roll
Q.4. Fill in the blanks:
(i) The cube and the cuboid each has _________ plane surfaces, _________ edges, and _________ vertices.
(ii) The cuboid has _________ pairs of identical plane surfaces.
(iii) All the surfaces of a cube are _________ to each other.
(iv) All the edges of a cube are _________.
(v) Opposite edges of a cuboid are _________.
(vi) A _________ has no vertex, and no edge.
Q.5.Write ‘true’ or ‘false’ for each statement as the case may be:
(i) Every cuboid is a cube.
(ii) Every cube is a cuboid.
(iii) All faces of a cube are similar in shape and size.
(iv) All the faces of a cuboid are identical.
(v) The cube has 6 faces.
(vi) The base and bottom of a cylinder are identical.
(vii) A cone has no vertex.
(viii) A cylinder has two edges.
(ix) A sphere has no edge.
(x) A cone has two surfaces.
|1. What is the difference between long and round objects?|
|2. Can an object be both long and round?|
|3. How do you measure the length of a long object?|
|4. What are some examples of round objects that are not perfectly circular?|
|5. How can you determine if an object is long or round if it is not obvious?|