Worksheet Solution: What is Long, What is Round? - Mathematics for Class 2: NCERT

Q.1. Circle the 3D shapes that stack.
(i) 
 
(ii) 
 
(iii) 
 
(iv) 
 
(v) 
 
(vi) 
 
Ans.
(i)
 
(ii)
 
(iii)
 
(iv)

Q.2. Pick the 3D shapes that slide.
(i) 
 
(ii) 
 
(iii) 
 
(iv) 
 
(v)  
 
(vi) 
 
Ans.
(i)  
  
(ii) 
 
(iii)
 
(iv)
  
(v) 

Q.3. Find out the 3D shapes that roll
(i) 
 
(ii) 

(iii) 
 
(iv) 
 
(v) 
 
(vi) 
 
Ans.
(i)
 
(ii)
 
(iii)
 

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.
Ans. 
(i) 6, 12, 8
(ii) 3
(iii) equal line
(iv) straight lines
(v) same in size
(vi) sphere

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.
Ans. 
(i) False
(ii) True
(iii) True
(iv) False
(v) True
(vi) True
(vii) False
(viii) True
(ix) True
(x) True