EXPRESS in km using decimal 6 cm = ?

Options

A. 0.006 km
B. 0.0006 km
C. 0.000006 km
D. none of these

Answer

To express 6 cm in kilometers using decimals, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the conversion factor**:
We know that 1 centimeter (cm) is equal to 0.00001 kilometers (km). This is because:
- 1 km = 1000 meters
- 1 meter = 100 centimeters
- Therefore, 1 km = 1000 * 100 = 100000 centimeters
- Hence, 1 cm = 1/100000 km = 0.00001 km.

2. **Set up the conversion**:
To convert 6 cm to kilometers, we multiply 6 by the conversion factor (0.00001 km/cm):
\[ 6 \text{ cm} = 6 \times 0.00001 \text{ km} \]

3. **Perform the multiplication**:
Now, we calculate:
\[ 6 \times 0.00001 = 0.00006 \text{ km} \]

4. **Final result**:
Therefore, 6 cm expressed in kilometers is:
\[ 6 \text{ cm} = 0.00006 \text{ km} \]

### Summary:
6 cm is equal to 0.00006 km.