Draw a plain scale when the representative fraction=1:100000 showing kilometers and meters for a distance of 20 kilometers
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To draw a plain scale using the representative fraction 1:100,000 for a distance of 20 kilometers, you will need to follow these steps:
1. Determine the total length of the scale: Since the representative fraction is 1:100,000, it means that 1 unit on the scale represents 100,000 units in real life. Therefore, the total length of the scale can be calculated as follows:
Total Scale Length = Distance in real life / Representative Fraction
Total Scale Length = 20 km / 100,000 = 0.2 cm
2. Decide on the scale divisions: Depending on the total length of the scale, you can divide it into multiple equal divisions to represent different units. In this example, let's divide the total scale length into 10 equal divisions, where each division represents 0.02 cm.
3. Label the divisions: Label each division to represent the distance it represents in real life units. Since 1 cm represents 100,000 units in real life, each division will represent 1/10th of that, which is 10,000 units.
So, label the first division as 10,000 units, the second division as 20,000 units, and so on, until you reach 100,000 units.
4. Convert the scale length to meters: As per step 1, the scale length calculated was in centimeters. To show kilometers and meters, we need to convert it to meters.
1 kilometer = 1000 meters
Therefore, the total scale length in meters will be 0.2 cm * 1000 = 200 meters.
5. Label the kilometer and meter divisions: Since the total scale length is 200 meters, you can divide it into 10 equal divisions, where each division represents 20 meters (200 meters / 10).
Label the first division as 20 meters, the second division as 40 meters, and so on, until you reach 200 meters.
Once you follow these steps, you will have successfully drawn a plain scale with kilometers and meters for a distance of 20 kilometers using the representative fraction 1:100,000.
To draw a plain scale using a representative fraction of 1:100000, follow these steps:
1. Determine the length of the scale bar: Since the representative fraction is 1:100000 and the distance is 20 kilometers, divide 20 kilometers by 100000 to find the length of the scale bar on your drawing. In this case, 20 kilometers ÷ 100000 = 0.0002 kilometers.
2. Convert the length of the scale bar to meters: To make the scale more practical, convert the length to a more manageable unit of measurement, such as meters. Since 1 kilometer is equal to 1000 meters, multiply the length of the scale bar in kilometers by 1000. In this case, 0.0002 kilometers × 1000 = 0.2 meters.
3. Decide on a scale length: Based on the converted length, determine a suitable length for your scale bar on the drawing. It can be any length you prefer, but for this example, let's use 5 centimeters.
4. Draw a straight line: On your drawing paper or software, draw a straight line that represents the scale bar. Make it 5 centimeters in length.
5. Label the scale: At the beginning of the line, write "0 km" to represent the starting point of the scale. At the end of the line, write "0.2 m" to indicate the length of the scale bar in meters.
6. Add intermediate divisions: Divide the scale bar into equal segments to indicate different distances. Since the scale bar is 0.2 meters, you could divide it into 4 equal segments of 0.05 meters each.
7. Label the intermediate divisions: Starting from the beginning of the scale, label each intermediate division with the corresponding distance. In this case, divide the 20 kilometers into 4 equal intervals of 5 kilometers each. Label the first intermediate division as "5 km," the second as "10 km," the third as "15 km," and the last one as "20 km."
By following these steps, you can draw a plain scale using the representative fraction 1:100000, representing a distance of 20 kilometers, with divisions in both kilometers and meters.