SOLUTION: If the area of a circle is a whole number, which of the following could be the circumference? A) 3✔️pi B) 2✔️pi C) 2 D) 2pi E) pi✔️2

Question 1043873: If the area of a circle is a whole number, which of the following could be the circumference?
A) 3✔️pi
B) 2✔️pi
C) 2
D) 2pi
E) pi✔️2
Answer by advanced_Learner(501) (Show Source): You can put this solution on YOUR website!
just substitute and see

only B give whole number area of circle.

=
square both sides
=
area is

=
which gives A= whole number area of circle,do for the rest.
A gives area of
B gives area of
C gives area of

E gives
comment is welcome
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SOLUTION: If the area of a circle is a whole number, which of the following could be the circumference? A) 3&#10004;&#65039;pi B) 2&#10004;&#65039;pi C) 2 D) 2pi E) pi&#10004;&#65039;2