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प्रश्न
- Guess the distance between any two dots. How many centimetres is it? Now measure it with the help of a scale. Did you guess right?
- Which two dots do you think are farthest from each other? Check your answer.
- Which two dots are nearest to each other? Check your answer.
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उत्तर
(1) The guess distance between any two dots are:
| A to B = 3 cm | A to C = 3 cm | A to D = 4.5 cm | A to E = 3.5 cm | A to F = 4.5 cm | A to G = 5 cm |
| B to C = 5 cm | B to D = 2 cm | B to E = 5 cm | B to F = 7.5 cm | B to G = 3 cm | B to H = 7 cm |
| C to D = 7 cm | C to E = 5.5 cm | C to F = 2.5 cm | C to G = 8 cm | C to H = 5 cm | C to I = 4.5 cm |
(2) Dots M and O are farthest from each other. The distance between M and O is 10
cm.
(3) The dots D and O are nearest to each other. The distance between D and O is 1 cm.
APPEARS IN
संबंधित 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?
Here are the Indian Records and World Records for some jumps.
| Sports | World Record | Indian Record |
| High Jump (Men) | Javier S. (2m 45 cm) | Chandra Pal (2m 17 cm) |
| Long Jump (Men) | Mike P. (8m 95 cm) | Amrit Pal (8m 8 cm) |
| High Jump (Women) | Stefka K. (2m 9 cm) | Bobby A. (1m 91 cm) |
| Long Jump (Women) | Galina C. (7m 52 cm) | Anju G. (6m 83 cm) |
Find out from the table -
How many centimeters higher should Bobby A. jump to reach 2 meters?
[Remember that 1m = 100 cm
Half metre = ?]
Here are the Indian Records and World Records for some jumps.
| Sports | World Record | Indian Record |
| High Jump (Men) | Javier S. (2m 45 cm) | Chandra Pal (2m 17 cm) |
| Long Jump (Men) | Mike P. (8m 95 cm) | Amrit Pal (8m 8 cm) |
| High Jump (Women) | Stefka K. (2m 9 cm) | Bobby A. (1m 91 cm) |
| Long Jump (Women) | Galina C. (7m 52 cm) | Anju G. (6m 83 cm) |
Find out from the table -
Look at the Women's World Records. What is the difference between the longest jump and the highest jump?
Here are the Indian Records and World Records for some jumps.
| Sports | World Record | Indian Record |
| High Jump (Men) | Javier S. (2m 45 cm) | Chandra Pal (2m 17 cm) |
| Long Jump (Men) | Mike P. (8m 95 cm) | Amrit Pal (8m 8 cm) |
| High Jump (Women) | Stefka K. (2m 9 cm) | Bobby A. (1m 91 cm) |
| Long Jump (Women) | Galina C. (7m 52 cm) | Anju G. (6m 83 cm) |
Find out from the table -
Whose high jump is very close to two and a half meters?
Try to find out:
How high can a kite go? Can it go higher than the Qutab Minar?
The matchstick is 4 centimetres long.
The die is 1 centimetre from every side.
The lizard is 13 centimetres long.
- The leaf is ______ centimetres long.
- The wax colour is ______ centimetres long.
- Now, look at a scale that you find in a geometry box. How many centimetres does it have? ______
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.
Activity 1
- Find some things that look 1 metre long.
- Use your metre-rope to find which of these things are more or less than 1 metre.
| Name of the thing | More than 1 metre | Less than 1 metre |
| Length of table | - | - |
| Width of table | - | - |
| Width of door | - | - |
| Length of door | - | - |
| - | - | |
| - | - | |
| - | - |
Activity 2
Some Class III children have marked a 1 metre height on the wall of their class.
You can also mark 1 metre on your class wall.
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 |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
