High School

Which of the following measurements is equal to 4 meters?

A. 400 centimeters
B. 40,000 kilometers
C. 4000 meters
D. 40 millimeters

Answer :

Sure! Let's go through the options one by one to determine which measurement is equal to 4 meters.

1. Centimeters:
- To convert meters to centimeters, we multiply by 100 (since 1 meter = 100 centimeters).
- [tex]\( 4 \text{ meters} \times 100 = 400 \text{ centimeters} \)[/tex]

2. Kilometers:
- To convert meters to kilometers, we divide by 1,000 (since 1 kilometer = 1,000 meters).
- [tex]\( 4 \text{ meters} \div 1000 = 0.004 \text{ kilometers} \)[/tex]

3. Meters:
- This option is already given in meters.
- 4000 meters (This should exactly match 4 meters)

4. Millimeters:
- To convert meters to millimeters, we multiply by 1,000 (since 1 meter = 1,000 millimeters).
- [tex]\( 4 \text{ meters} \times 1000 = 4000 \text{ millimeters} \)[/tex]

Now, let's compare these converted values to the options provided in the question:

- Option 1: 400 centimeters
- [tex]\(4 \text{ meters} = 400 \text{ centimeters}\)[/tex], so this is correct.

- Option 2: 40,000 kilometers
- [tex]\(4 \text{ meters} = 0.004 \text{ kilometers}\)[/tex], so this is incorrect.

- Option 3: 4000 meters
- This directly contradicts 4 meters, so this is incorrect.

- Option 4: 40 millimeters
- [tex]\(4 \text{ meters} = 4000 \text{ millimeters}\)[/tex], so this is incorrect.

The correct measurement equal to 4 meters is 400 centimeters. Therefore, the correct answer is:

400 centimeters.