A small indoor green house (herbarium) is made entirely of glass panes (including base) held together with tape. The dimensions of the green house are `40cm xx 30cm xx 25cm`. Find:
the length of the tape required

Answer

To find the length of the tape required to hold together the glass panes of the greenhouse, we need to calculate the total length of all the edges of the cuboid-shaped greenhouse.

### Step-by-Step Solution:

1. **Identify the Dimensions**:
- Length (L) = 40 cm
- Breadth (B) = 30 cm
- Height (H) = 25 cm

2. **Count the Edges of the Cuboid**:
A cuboid has 12 edges:
- 4 edges of length (L)
- 4 edges of breadth (B)
- 4 edges of height (H)

3. **Calculate the Total Length of the Edges**:
The total length of the tape required can be calculated using the formula:
\[ \text{Total Length of Tape} = 4L + 4B + 4H \]

4. **Substitute the Values**:
Substitute the values of L, B, and H into the formula:
\[ \text{Total Length of Tape} = 4 \times 40 + 4 \times 30 + 4 \times 25 \]

5. **Calculate Each Term**:
- Calculate \(4L\):
\[ 4 \times 40 = 160 \text{ cm} \]
- Calculate \(4B\):
\[ 4 \times 30 = 120 \text{ cm} \]
- Calculate \(4H\):
\[ 4 \times 25 = 100 \text{ cm} \]

6. **Sum the Lengths**:
Now, add all these lengths together:
\[ \text{Total Length of Tape} = 160 + 120 + 100 = 380 \text{ cm} \]

### Final Answer:
The length of the tape required is **380 cm**.