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प्रश्न
Mohan arranged his matchboxes like this. 
• How many matchboxes did he use to make it? What is its volume in matchboxes? ________ matchboxes.
• Collect empty matchboxes. Arrange them in an interesting way. Make a deep drawing of it.
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उत्तर
• In the bottom layer, we can see that there are 4 matchboxes in length and 4 in breadth.
So, the bottom layer has 16 matchboxes.
In the layer above the bottom, we can see that there are 3 matchboxes in length and 3 in breadth.
So, the layer above bottom has 9 matchboxes.
Now, the second layer from the top has 2 matchboxes in length and 2 matchboxes in breadth.
So, this layer has 4 matchboxes.
The top layer has only 1 matchbox.
Thus, total volume of the arrangement in terms of matchboxes = 16 + 9 + 4 + 1 = 30
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संबंधित प्रश्न
Now make your own measuring glass using 35 marbles.
Take a glass of water and mark the level of the water as 0. Then put in 5 marbles and mark the level of the water as 5 M.
Again drop 5 marbles and mark the level of the water as 10 M. Likewise make the markings for 15 M, 20 M, 25 M, 30 M, and 35 M.
Now put each thing in the measuring glass and check your guess.
Try with different things like a matchbox, a stone, etc., and fill the table.
| Name of the thing | Its volume (nearly how many marbles?) |
First guess and then use your measuring bottle to find out the volume in mL of some other things.
| Thing | Its volume (in mL) |
A stage (platform) is made with 5 Math-Magic books. The volume of this stage is the same as ______ cm cubes.
Guess the volume of these things in cm cubes.
- A matchbox is about __________ cm cubes.
Make deep drawings of the platforms you have made
Use your measuring bottle to find out:
- The volume of 32 one-rupee coins? _________ mL.
Use your measuring bottle to find out:
Mollie puts some five-rupee coins in the measuring bottle. How many coins has she put in it:
- if 30 mL water is pushed up?
- if 60 mL water is pushed up?
Tanu is making a stage with matchboxes.
She first puts 14 matchboxes like this in the first layer.
She makes 4 such layers and her stage looks like this.
- If all these cubes are arranged in a line, how long will that line be? _________ cm.
Hey, my math-magic book is about ___ cm long. So______ cubes will fit along its length.
And it is about ______ cm wide. So ______ cubes will fit along the width.
