### NCERT Solution for Class 7th Maths Exercise – 15.1 Chapter – 15 Visualising solid Shapes

- by Dev Bhardwaj

__NCERT Solution for Class 7th Maths Exercise – 15.1 Chapter – 15 Visualising solid Shapes__

__NCERT Solution for Class 7th Maths Exercise – 15.1 Chapter – 15 Visualising solid Shapes__

**Q1. Identify the nets which can used to make cubes **

**Solution:-**

The given net cannot be folded as cube.

Because , it can be folded as below,

** **

**(ii)**

** **

**Solution:-**

The given net can be folded as cube.

Because,it can be folded as below,

** **

**(iii)**

** **

** **

**Solution:-**

The given net can be folded as cube.

Because , it can be folded as below,

** **

**(iv)**

** **

**Solution:-**

The given net can be folded as cube.

Because it can be folded as below,

** **

**(v) **

** **

** **

**Solution:-**

The given net cannot be folded as cube,

Because, it can be folded as below,

** **

**(vi)**

** **

** **

**Solution:-**

The given net can be folded as cube.

Because, it

**Q2. Dice are cubes with dots on each face. Opposite faces of a lie always have a total of seven dots on them.**

** **

**Here are two nets to make dice (cubes); the numbers interested in each square indicate the number of dots in that box.**

** **

**Insert a suitable numbers in the blanks, remembering that the number on the opposite faces should total to 7. **

**Solution:-**

** **

**(i)**

By observing the above figures the sum of the opposite faces is equal to 7.

So, the given net can be folded into a net if dice.

**(ii)**

By observing the above figures the sum of the opposite faces is equal to 7.

So, the given net can be folded into a net of dice.

**Q3. Can this be a net for a die ? Explain your answer.**

**Solution:-**

The given net is folded as dice is shown in the figure below.

No, this cannot be a net for a die.

By observing the figure we can say that, one pair of opposite face will have 1 and 4, another pair of opposite face will have 3 and 6 the sum of these two opposite faces are not equal to 7.

** **

**Q4. 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 that net here?**

** **

** **

**Solution:-**

In the given net there are 3 faces and it can be completed as shown below,

** **

**Q5. Match the nets with appropriate solids:**

** **

** **

** **

** **

**Solution:-**

**(a)(ii)**

Because the net (ii) can be folded as square,

**(b)(iii)**

Because the net (iii) can be folded as cylinder.

**( c )(iv)**

** **

** **

Because, the net (iv) can be folded as cone.

**(d)(i)**

** **

** **

Because , the next (i) can be folded as pyramid.

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NCERT Solution for Class 7th Maths Exercise – 15.1 Chapter – 15 Visualising solid Shapes Q1. Identify the nets which…

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