One hundred millimeters is equal toa)10 dmb)100 dmc)1 md)10 cmCorrect ...
- 100 millimeters (mm) is equal to 10 centimeters (cm) because 1 cm = 10 mm.
Let's verify the other options:
- A: 10 dm is incorrect because 1 dm (decimeter) = 100 mm, not 100 mm = 10 dm.
- B: 100 dm is incorrect because 100 millimeters is much smaller than 100 decimeters.
- C: 1 m is incorrect because 1 meter = 1000 mm, not 100 mm.
Thus, 100 mm = 10 cm is the correct answer.
Topic in NCERT: Units of Measurement
Line in NCERT: "Each metre (m) is divided into 100 equal divisions, called centimetre (cm)."
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One hundred millimeters is equal toa)10 dmb)100 dmc)1 md)10 cmCorrect ...
Understanding Measurement Units
Measurement units play an essential role in understanding lengths and distances. In this context, we are comparing millimeters, decimeters, centimeters, and meters.
Conversion of Millimeters to Centimeters
- 1 centimeter (cm) = 10 millimeters (mm)
- Therefore, to convert millimeters to centimeters, divide the number of millimeters by 10.
Calculating for 100 Millimeters
- To convert 100 mm to cm:
- 100 mm ÷ 10 = 10 cm
Understanding the Options
- a) 10 dm:
- 1 decimeter (dm) = 100 mm
- So, 100 mm = 1 dm (not correct).
- b) 100 dm:
- This is incorrect because 100 mm is much less than 100 dm.
- c) 1 m:
- 1 meter (m) = 1000 mm
- Therefore, 100 mm is much less than 1 m (not correct).
- d) 10 cm:
- As calculated, 100 mm equals 10 cm (correct answer).
Conclusion
The correct answer is option 'D', which states that 100 millimeters is equal to 10 centimeters. This conversion highlights the relationship between different metric units and helps in understanding measurements better.
One hundred millimeters is equal toa)10 dmb)100 dmc)1 md)10 cmCorrect ...
Understanding Unit Conversions:
Millimeters (mm) to Centimeters (cm): → 1 cm = 10 mm
Millimeters (mm) to Meters (m): → 1 m = 1000 mm
Millimeters (mm) to Decimeters (dm): → 1 dm = 100 mm
Now, let's convert 100 mm:
100 mm � 10 mm/cm = 10 cm
100 mm � 1000 mm/m = 0.1 m (not a correct option)
100 mm � 100 mm/dm = 1 dm (not 10 dm or 100 dm)
Thus, 100 mm equals 10 cm, making Option D the correct answer.