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What is the area of a circle with a radius of 3 cm?

Answer 1

Noah Atkinson

#Area = 28.27cm^2#

The area of a circle can be obtained by using the equation below:

where the mathematical constant, #pi#, 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 #pi# to figure out the area:

#Area = (3cm)^2 xx pi#
#Area = 28.27cm^2#

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Answer 2

Maverick Smith

The area of a circle with a radius of 3 cm is (A = \pi \times r^2 = \pi \times (3 , \text{cm})^2 = 9\pi , \text{cm}^2).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.