Correct option is B
To find the minimum number that must be added to 1289 to make it a perfect square, follow these steps:
Find the square root of 1289:
- √1289 ≈ 35.91 (not a whole number, meaning 1289 is not a perfect square)
Identify the next perfect square:
- The next perfect square greater than 1289 is 36² = 1296.
Determine the required addition:
- 1296 - 1289 = 7
Thus, the minimum number to be added to 1289 to make it a perfect square is 7.