Find the square of :
`15`

Answer

To find the square of 15, we follow these steps:

### Step-by-Step Solution:

1. **Understand the concept of squaring a number**: The square of a number is obtained by multiplying the number by itself.
- Formula: \( a^2 = a \times a \)

2. **Apply the formula to the number 15**:
- Here, we need to find \( 15^2 \).
- This means we calculate \( 15 \times 15 \).

3. **Perform the multiplication**:
- Break it down:
- \( 15 \times 15 = 15 \times (10 + 5) \)
- Using the distributive property:
- \( 15 \times 10 = 150 \)
- \( 15 \times 5 = 75 \)
- Now add the two results together:
- \( 150 + 75 = 225 \)

4. **Conclusion**:
- Therefore, the square of 15 is \( 225 \).

### Final Answer:
The square of 15 is \( 225 \).