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For circles, Area=pi*r^2 (pi multiplied by radius squared). You know that the radius is 3.2cm. Sub this in to the formula, press the relevent calculator buttons, and you have your answer.

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Q: Find the area of a circle that has a diameter of 6.4 cm?
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Related questions

If the area of a circle is 64 square units what is the diameter?

If the area of a circle is 64 square units the diameter is: 9.027 units.


A circle has a diameter 16 and an area of 64?

Hold it right there. That's not possible. Something's gotta give.The area of a circle = pi R2 = pi (half the diameter)2If the circle has a diameter of 16, then its area is 201.1(rounded).If it has an area of 64, then its diameter is 9.03(rounded).If it has a diameter of 16 and an area of 64, then it's not a circle.


A circle has a diameter of 16 and the area of 64 Pi find the radius?

In this case, the radius is easiest calculated from the diameter. The radius is simply half the diameter.


What is the area of a 64 inch circle?

That will depend on whether the 64 inches is the radius, diameter, or circumference of the circle.


What is the area of a circle with a diameter of 16cm?

64 pi sqcm


If a circle has diameter of 8 Cm what is the area?

64 pi


What is the diameter of a circle when the area is 200.96?

area/pi = diameter 200.96/pi = 63.96755473 or 64 units in length.


What is the area of a circle with diameter of 16in?

64*pi square inches


What is the precise area of the circle with a 16mm diameter?

Area = 64*pi square mm


What is the area of a circle a diameter of 16 in?

Using 3.14 as Pi the area of circle is: 200.96


What is the circumference of a 64 mm diameter circle?

The circumference of the circle with a diameter of 64 mm is 64*pi = about 201 mm


What is the area of a circle if it has a diameter of 16 inches?

Formula for finding the area of a circle: Area = pi * r2 a = 3.14 * 82 a = 3.14 * 64 a = 201.06