What is the area of a square that is 21.5 ft.by 10 ft.?

Question

​What is the area of a square that is 21.5 ft.by 10 ft.?

Quizplus · Accepted Answer

The area of a square is equal to the length of one side squared. In this case, the given dimensions do not make a perfect square, so we need to use the smaller dimension (10 ft.) as the length of one side. 
Area = (10 ft.)^2 = 100 ft.^2
So, the given measurements give us a rectangle with an area of 215 ft.^2 (21.5 ft. x 10 ft.). However, we are looking for the area of a square with these same measurements. Therefore, we can ignore the longer side length of 21.5 ft. and just use the length of 10 ft. as the side length of the square. 
Area = (10 ft.)^2 = 100 ft.^2.
Therefore, the correct answer is B, 215 ft.^2.

​What Is the Area of a Square That Is 21

What Is the Area of a Square That Is 21