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Area = pi*502 = 7853.981634 or about 7854 square feet.

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13y ago
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Q: What is the area of the top of reservoir 100 ft diameter and 20 ft high?
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What is the diameter of a circle with an area of 100πmm3?

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.


Area of a square with a diameter of 100?

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What is the area of a circle if the diameter is 110 cm?

For a circle with a diameter of 100 cm, the area is ≈ 9,503.32 cm2


Does a wire with a diameter of 0.01 mm have lower resistance than a wire with 0.1 mm?

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.


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What is the area of a circle with a diameter of 100 cm?

Area = pi*502 square cm


What is the area of a circle that has a 20 inch diameter?

(100 pi) square inches is.


How do you find the diameter of a circle if you have the area?

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


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What is the area of a circle with 100 mm diameter?

A circle with a radius of 50 mm has an area of 7853.98 square mm


What is the area of a hollow cylinder with an outside diameter of 100mm and inside diameter of 30mm?

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


What is the approximate area of a circle that has a diameter of 12 cm?

Approximately 100, give or take