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प्रश्न
How is a distance on a map measured by a piece of twine?
उत्तर
Take the piece of the twine, make a knot at one end and place
the knotted end on the starting point of the distance to .be measured. Now move the twine along the object to be measured by slowly placing the twine bit by bit along the route following each bend or curve as closely as possible. When you reach the end of the route you are measuring, mark that end with ink. Now place the twine on the scale with the knotted end at 0 and see how far the ink-marked end reaches on the scale. Measure the length and convert into kilometres. If the distance to be measured is longer than the printed scale on the map, place the twine on the ruler in the same way, calculate the number of centimetres it covers and convert that into kilometres.
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संबंधित प्रश्न
Fill in the blanks. One has been done for u
| Distance on the map | Distance on the gound | Scale |
| 5 cm | 25 km | 1 cm = 5 km |
| 10 cm | 100 km | ___________ |
| 2 cm | ________ | 1 cm = 30 km |
| _________ | 49 m | 1 cm = 7 m |
| 6 cm | 60,000 km | __________ |
Choose the correct answer:
This is the ratio of the distance between two places on a map to the actual distance between the same two places on the ground.
Choose the correct answer:
In this fraction, the numerator is always 1.
State whether the following is true or false.
The distance along a curved line is measured by a ruler.
Describe the method by which the distance on a curved line is measured.
With regard to scale, answer the following questions:
Convert the statement into R.F. `2 1/2` inches on the map = 5 miles on ground.
With regard to scale, answer the following question:
Convert the statement into R.F. 7 cm on the map = 63000 meters on ground.
Convert the following representative fraction into statement:
1 : 63360 (to show miles).
Convert the following representative fraction into a statement:
1 : 10 (to show metres)
Convert the following representative fraction into a statement:
1: 200,000 (to show kilometres)
