Rajasthan Board RBSE Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Ex 15.1 Textbook Exercise Questions and Answers.
Question 1.
Identify the nets which can be used to make cubes (cut out copies of the nets and try it):
Answer:
(ii), (iii), (iv) and (vi) nets can be used to make cubes.
Question 2.
Dice are cubes with dots on each face. Opposite faces of a dice always have a total of seven dots on them. Here are two nets to make dice (cubes), the number inserted in each square indicate the number of dots in that box. Insert suitable numbers in the blanks, remembering that the number on the opposite faces should total to 7.
Answer:
Question 3.
Can this be a net for a dice? Explain your answer.
Answer:
No, as we can see one pair of opposite faces will have 1 and 4 on them whose total is 5. One more pair of faces are having 3 and 6 on them whose total is 9 (total of opposite faces should be 7).
Question 4.
Here is an incomplete net for making a cube. Complete it in at least two different ways. Remember that a cube has six faces. How many are there in the net here? (Give two separate diagrams. If you like, you may use a square sheet for easy manipulation.)
Answer:
Question 5.
Match the nets with appropriate solids.
Answer:
(a) - (ii)
(b) - (iii)
(c) - (iv)
(d) - (ii)