Find the perimeter and area of a rectangle having :
Length = 6 hm , Breadth = 8 dam

Answer

To find the perimeter and area of a rectangle with a length of 6 hectometers and a breadth of 8 decameters, we will follow these steps:

### Step 1: Convert Length from Hectometers to Decameters
1. **Given Length**: 6 hectometers
2. **Conversion Factor**: 1 hectometer = 10 decameters
3. **Calculation**:
\[ \text{Length in decameters} = 6 \, \text{hm} \times 10 \, \text{dam/hm} = 60 \, \text{dam} \]

### Step 2: Identify the Breadth
1. **Given Breadth**: 8 decameters (already in the correct unit)

### Step 3: Calculate the Perimeter of the Rectangle
1. **Formula for Perimeter**:
\[ \text{Perimeter} = 2 \times (\text{Length} + \text{Breadth}) \]
2. **Substituting Values**:
\[ \text{Perimeter} = 2 \times (60 \, \text{dam} + 8 \, \text{dam}) = 2 \times 68 \, \text{dam} = 136 \, \text{dam} \]

### Step 4: Calculate the Area of the Rectangle
1. **Formula for Area**:
\[ \text{Area} = \text{Length} \times \text{Breadth} \]
2. **Substituting Values**:
\[ \text{Area} = 60 \, \text{dam} \times 8 \, \text{dam} = 480 \, \text{dam}^2 \]

### Final Answers
- **Perimeter**: 136 decameters
- **Area**: 480 square decameters

---