Answer: 56 units²
Step-by-step explanation:
To find the area of the new shape after removing a chunk with an area of 25 from a square with a side length of 9, we can first find the area of the square and then subtract the area of the removed chunk.
The area of a square can be found by squaring its side length.
Area of square: 9² = 81
Now, we can subtract the area of the removed chunk from the area of the square to find the area of the new shape:
Area of new shape = 81 - 25 = 56
The area of the new shape is 56 units².
