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प्रश्न
Imagine-
- Could that person pass through the door of your classroom without bending?
- Will his head touch the roof of your house if he stands straight?
उत्तर
- No, because the door of our classroom is only 228 cm high.
- Yes, because the height of my classroom is 320 cm.
APPEARS IN
संबंधित प्रश्न
Have you heard about a 1500 m or 3000 m race? (You remember that 1000 metres make 1 kilometre and 500 metres make half a kilometre.)
So you can say -
In a 1500 metres race people run ______ km.
The Qutab Minar is 72 meters high.
- About how many meters high is your classroom?
- Guess how many rooms, one on top of the other, will be equal to the Qutab Minar.
- Explain how you made a guess.
Guess and Find Out
If a handkerchief is made out of a single thread, how long would that thread be?
In how many steps will Dorji cross the road?
How many pots can be placed to reach the tree branch?
Think - How will you know the number of centimetres if you measure with a rope, shoe-string, thread etc.?
| My measurement | My friend's measurement | |
| Nose | ______ centimetres | ______ centimetres |
| Around the wrist | ______ centimetres | ______ centimetres |
| Around the head | ______ centimetres | ______ centimetres |
| Ear | ______ centimetres | ______ centimetres |
| Hand (tip of middle finger to wrist) | ______ centimetres | ______ centimetres |
You must have seen shopkeepers measuring cloth with a metre rod.
- Take a metre rod and a rope.
- Make a knot at one end of the rope.
- Keep the metre rod with the rope.
- Mark 1 metre on the rope and make a knot there.
- Now the length between the two knots is 1 metre. This is your metre-rope.
If you don't get a metre rod use a measuring-tape and mark 100 centimetres on the rope. 100 centimetres are equal to a metre, so you get the metre-rope.
Now make a chart of the heights of your friends. To measure the centimetres, you can use your small scale.
| Name | Taller/Shorter/Equal to 1 metre | How many centimetres more or less than a metre |
| Shambhu | Taller | 4 centimetres |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
Which of these will be in centimetres and which will be in metres?
Height of a 1-year old child
Which of these will be in centimetres and which will be in metres?
Waist of an elephant
