Determine whether natural numbers, whole numbers, integers, rational numbers, or all real numbers are appropriate for
the situation.
-values of A given by the formula A =πr², where A is the area of a circle with radius r

Question

Quizplus · Accepted Answer

The formula for the area of a circle is $A = \pi r^2$, where $r$ is the radius. Since the radius $r$ can be any positive real number, and $\pi$ is an irrational number, the area $A$ can be any positive real number. Thus, all real numbers are appropriate for the values of $A$.

Determine Whether Natural Numbers, Whole Numbers, Integers, Rational Numbers, or All