if it's a circle it's: 706.9=pi(r2) which makes the diameter about 30.0009 cm
A circle with a diameter of 25 mm has an area of 490.9 square mm.
It works out as slightly over 30 mm
A 12 mm circle has a diameter of 12 millimeters, which is slightly less than half an inch (approximately 0.47 inches). The radius, which is half the diameter, is 6 mm. In terms of area, the circle has an area of about 113.1 square millimeters. This size is comparable to the diameter of a large button or a small coin.
5000.Area of a square = 0.5*(diameter)^2
A 20mm circle has a diameter of 20 millimeters, which is equivalent to 2 centimeters or approximately 0.79 inches. The radius of the circle is half of the diameter, so it measures 10mm. This size is comparable to a small coin, such as a dime. In terms of area, the circle has an approximate area of 314 square millimeters.
Using 3.14 as Pi the area of circle is: 961.625
A circle with a diameter of 25 mm has an area of 490.9 square mm.
It works out as slightly over 30 mm
Area = pi*182 = 1017.876 square mm to 3 decimal places
Well, honey, if the diameter of a circle is 7 mm, then the radius is half of that, which is 3.5 mm. The formula for the area of a circle is πr^2, so plug in 3.5 for the radius and you get an area of approximately 38.48 square millimeters. So there you have it, darling!
If the area is 81 millimeters, the side length is the square root of that, or 9 millimeters.
The area of a square with sides of length 7 mm: 7 millimeters times 7 millimeters are 49 square millimeters.
A 12 mm circle has a diameter of 12 millimeters, which is slightly less than half an inch (approximately 0.47 inches). The radius, which is half the diameter, is 6 mm. In terms of area, the circle has an area of about 113.1 square millimeters. This size is comparable to the diameter of a large button or a small coin.
5000.Area of a square = 0.5*(diameter)^2
A 20mm circle has a diameter of 20 millimeters, which is equivalent to 2 centimeters or approximately 0.79 inches. The radius of the circle is half of the diameter, so it measures 10mm. This size is comparable to a small coin, such as a dime. In terms of area, the circle has an approximate area of 314 square millimeters.
The area of square is : 2304.0
The area would be 12*18, or 216 square millimeters.