The diagram shows a circle with radius 3 and centre at O. The circumference

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The diagram shows a circle with radius 3 and centre at O.
The circumference and the area of this circle are rational or irrational? [2 MARKS]

Options:

Answer: Option A
:

Formula: 1 Mark
Answer: 1 Mark
The circumference is given by the formula $C = 2 \times π \times r$
So, $C = 2 \times π \times 3 = 6 π$
The area is given by the formula $A = π \times r^{2}$
So, $A = π \times 3^{2} = 9 \times π$
As, $π$ is irrational, so the circumference and area are both irrational.

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