3.14*10*10=314cm2
A circle with a radius of 4 cm has an area of 50.27 square cm.
The area of a circle with a radius of 7 cm is: 153.9 cm2
Area of ANY circle is (pi) x (radius)2 .
If you mean area of a circle with a radius of 25 cm then it is:- Area = pi*252 = 1963.495 square cm to 3 decimal places
The area of a circle is 153.86cm².find the radius of the circle
If that's the area of a circle then its radius is about 10 cm
A circle with a radius of 10 cm has an area of 314.16 square cm
The area of a circle with a radius of 10 cm would be 100 times pi, or, rounded to the nearest hundreth, 314.15 cm2.
Area of any circle = pi*radius squared
The probability as a fraction that a point chosen at random within a circle of radius 10 cm will be inside a concentric circle of radius 4 cm is the ratio of the area of the smaller circle (4 cm radius) to the area of the larger circle (10 cm radius). Therefore, the probability is (4^2)/(10^2) = 16/100 = 4/25.
314.29 cm
Area of a circle in square cm = pi*radius squared
4 cm radius = Area of 50.26548 sq. cm.
A circle with a radius of 3 cm has an area of 28.27 square cm.
A circle with a radius of 2 cm has an area of 12.57 square cm.
A circle with a radius of 25 cm has an area of 1,963.5 square cm.
A circle with a radius of 19 cm has an area of 1,134.11 square cm.