Answer:
Yes
Step-by-step explanation:
Given that the area of the square floor is 400, we can find the side length because A = x^2 = 400. So, the side length is just the square root of 400 = 20.
Now, we are increasing the length of each side by 21 so that now the dimensions are 21 ft by 21 ft. We multiply these to get the area: 21 * 21 = 441.
Rational numbers are those that can be written in the form p/q, where q ≠ 0. Here, we can write 441 as 441/1, so yes, the new area is a rational number.
Hope this helps!
