# NCERT Class 7 Mathematics Solutions: Chapter 15 –Visualising Solid Shapes Exercise 15.1 Part 1

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1. Identify the nets which can be used to make cubes (cut out copies of the nets and try it):

Answer:

Cube’s nets (ii), (iii), (iv) and (vi) can be used to make cubes.

2. Dice are cubes with dots on each face. Opposite faces of a die always have a total of seven dots on them.

Here are two nets to make dice (cubes); the numbers 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.

Answer:

3. Can this be a net for a die? Explain your answer.

Answer:

No, this cannot be a net for a die.

Because one pair of opposite faces will have and on them and another pair of opposite faces will have and on them whose total is not equal to .