Area = pi*502 = 7853.981634 or about 7854 square feet.
I do not know about a circle with an area of 100 nmm3.A circle with an area of 100 mm2 has a diameter of 11.28 mm.
5000.Area of a square = 0.5*(diameter)^2
For a circle with a diameter of 100 cm, the area is ≈ 9,503.32 cm2
No, a smaller diameter wire has a higher resistance. The 0.01 mm wire will have 1/100 the cross-sectional area of the 0.1 mm diameter wire, therefore the resistance will be 100 times as high.
Cross-sectional_area = area of circle with diameter 100 mils. 1 mil = 1/1000 in. radius = ½ × diameter area_circle = π × radius² = π × (½ × diameter)² = π × (½ × 100 × 1/1000 in)² ≈ 0.00785 in²
Area = pi*502 square cm
(100 pi) square inches is.
The formula A = (pi) r2 lets you find the radius, which is half of the diameter. Divide the area by pi, then take the square root of that value, which is the radius. Then multiply by 2 to get the diameter. -- Example: Area = 100 A = (pi) r2 100 = (3.1416) r2 r2 is 100/3.1416 or about 31.83, and the square root is 5.64 r = 5.64 and D = 11.28
Area = Pi*r2 = Pi*502 = approximately 7,853.98 units2
A circle with a radius of 50 mm has an area of 7853.98 square mm
Not clear which area you want. The surface area of the cylinder can only be determined if you give the length of the cylinder as well as its diameter. As you don't give this I conclude you want the area of the ends only. Each end will be the difference between the area of the 100 mm circle and the 30 mm circle. 100 mm diameter area = 7855 sq mm. 30 mm diameter area = 707 sq mm. Therefore area of end = 7148 sq mm, and you have two ends so total = 14296 sq mm
Approximately 100, give or take