Question

The area of a rectangle is 18, The number of square feet is a member of which set subsets of real numbers?

Answer 1

The area of a rectangle is a natural number, an integer and a rational number.

Explanation:

The area of a rectangle is a member of the following three subsets of real numbers:

(i) Natural numbers (
`\mathbb{N}`) - The area of the rectangle has no decimal parts and is positive.

(ii) Integer (
`\mathbb{Z}`) - The area of the rectangle has no decimal parts.

(iii) Rational numbers (
`\mathbb{Q}`) - The area of the rectangle can be obtained by dividing a natural number by other natural number. For instance:

`(36)/(2) = 18`

In a nutshell, the area of a rectangle is a natural number, an integer and a rational number.