Area of a circle = pi x radius2
The area of a circle with radius 3 cm = pi x 32
= 28.27433388
= 28.3 cm2 (1 decimal place)
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Pi x 3cm x 3cm= Area
The surface area is 226.2cm2
The area of a circle if the radius is 9m 254.5m2
The radius of a circle with the area of 36 is 3.385
The area of a circle with a radius of 2m is: 12.566 m2