What is the area of a circle having radius 3
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Answer:
Step-by-step explanation:
Radius = r = 3
Area = π × r2
= π × 32
= π × (3 × 3)
= 3.14159... × 9
= 28.27 (to 2 decimal places)
Answered by
1
where the mathematical constant,
π
, has a value of approximately 3.14 and
r
represents the radius of the circle.
All we have to do is square the given radius and multiply that value by
π
to figure out the area:
area = (3cm)^2 × π
area = 28.27 cm^2
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