1/2*3.14*42
=25.12 sq.cm if the radius is 4 cm
A circle with a radius of 4 cm has an area of 50.27 square cm.
The formula for the area of a circle is: A = pi r2 where r is the measure of the radius. If the diameter of a circle is 8 cm, then the radius is half of that measure or 4 cm. Plug that into the formula and use 3.14 to approximate pi. A = 3.14(4)2 A = 3.14(16) Area is approximately 50.24 square cm.
Area = 12.6 cm2Circumference = 12.6 cm
Method to find area of a circle is: The area of a circle is its radius squared times pi. Assuming the pipe has a diameter of 4cm: radius = 2 cm Circumference = 12.5664 cm Area = 12.5664 cm2
area of a circle is pi x radius^2 so... pi x 4^2 = about 50 cm
-7
4 cm radius = Area of 50.26548 sq. cm.
This indicates a radius of 4 cm, in which case the area of the circle is: 50.27 square cm
A circle with a radius of 4 cm has an area of 50.27 square cm.
A circle with a radius of 4 cm has an area of 50.27 square cm.
A circle with a radius of 4 cm has an area of 50.27 square cm.
The area of a circle (in square hectometers) if the diameter is 4 cm is: 0.001257 hectometers2
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.
A circle with a radius of 6 cm has an area that is about 113.1 cm. 3/4 of that is 84.825 cm
The area is about: 50.27 square centimeters.
A=Pi(r)2 - A circle with a radius of 4 cm has an area of 50.27 square cm
12.57 square cm.