Question
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]
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]
Answer:
:
Formula: 1 Mark
Answer: 1 Mark
The circumference is given by the formula C=2×π×r
So, C=2×π×3=6π
The area is given by the formula A=π×r2
So, A=π×32=9×π
As, π is irrational, so the circumference and area are both irrational.
Was this answer helpful ?
:
Formula: 1 Mark
Answer: 1 Mark
The circumference is given by the formula C=2×π×r
So, C=2×π×3=6π
The area is given by the formula A=π×r2
So, A=π×32=9×π
As, π is irrational, so the circumference and area are both irrational.
Was this answer helpful ?
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