Answer:
11
Step-by-step explanation:
First you do 35.5ft2 – 26.5ft2 to find the area of the square.
You get 9ft2 as your answer.
Then you would find the square root of 9, which just happens to be 3.
Each side of the square = 3ft
A cube has three dimensions: base, height, and width, so not a cube.
A cone is 3D so it's not a cone.
The correct answer is square, because it only has base x height, which has two dimensions.
