55.3896 sq cm
55.39 sq cm (rounded)
Area = pi*42 = 50.26548246 or about 50 square cm
Area of a circle in square cm = pi*radius squared
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.
Area of a circle = pi x (radius)2So, if the radius is 4 cm, the area is pi x 42= 50.265 cm2
Area = pi*42 = 50.26548246 or about 50 square 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.
264 cm
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.
A circle with a radius of 2.7 cm has an area of 22.9 square cm.