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How do you find the area of a circle when the radius is unknown?
By using the other information supplied about the circle to calculate either its radius (from which its area can be calculated) or its area (if the circle is similar to another with a given area and some ratio between the two circle is given):If the diameter is given: radius = diameter ÷ 2If the circumference is given: radius = circumference ÷ 2πIf the circle is similar to another circle which has a given area, and the length ratio is given; square the length ratio to get the area ratio and apply to the given area.
What is the diameter of a 8cm circumference?
The diameter of a circle may found by dividing the circumference by pi. 8cm/3.1416=2.546cm
How do you find the circumference of a circle from the radius?
Square the radius and multiply the result by 3.14. You may want additional digits of pi for greater precision, but that's the basic idea.The formula is πr² (that's "pi r squared," if the character doesn't show up properly).ANSWER:The above answer is wrong! The above gives the area of a circle, not the circumference. Besides pie are round, cornbread are square. Pi = 3.1416 as stated above.The circumference of a circle is 2 times the radius times pi .This is because pi for all circles is the circumference divided by the diameter. So, pi times the diameter equals the circumference. The diameter is twice the radius.
How many linear feet in 40 acres?
Acres is an area and feet is a length. That does not go together. "Linear" is an unnecessary word, because all distance measurements are linear. To answer this, 40 acres in a perfect square is equal to 1/4 mile by 1/4 mile, or 1320 ft. by 1320 ft. So if you are asking "what is the total perimeter of 40 acres?" the answer would be 1 mile, or 5280 ft. You may also find acre dimensions measured in rods. 1 rod = 16.5 ft. Here is a handy little link http://www.systemfence.com/images/systemfence/Information_pages/Fence_measurement_Page.pdf
What is the center and edge of a circle called?
The centre of a circle is simply called the cnetre. The edge may called the perimeter, the circumference or the edge.
How may acres is Asia?
Asia's area is about 11.008 billion acres.
How many acres is 3.2 sq miles?
1 square mile = 640 acres 3.2 square miles x 640 acres/1 square mile = 2048 acres you may try the online converter linked below next time
How many square miles in 160 acres?
1 square mile = 640 acres280 acres x 1 square mile/640 acres= 0.4375 square milesyou may try using the online converter linked below next time
Equatorial circumference of earth?
The equatorial circumference of the Earth is approximately 24,901 miles (40,075 kilometers). This measurement represents the distance around the Earth at the equator, which is the largest circumference of the planet due to its slightly flattened shape at the poles.
What has an area of 7500 square miles?
A region or state may have an area of 7500 square miles.
What is the circumfrance of all the planets?
The circumference of each planet varies. Here are approximate measurements for the equatorial circumference of each planet in our solar system: Mercury - 9,525 miles, Venus - 23,629 miles, Earth - 24,901 miles, Mars - 13,256 miles, Jupiter - 279,118 miles, Saturn - 234,449 miles, Uranus - 99,751 miles, Neptune - 96,096 miles.
Does Denver have a lot of land?
Denver has an area of 154.9 sq miles (401.2 km²), but it may or may not be considered to be a lot of land. Compared to a couple of acres, it is a lot, but compared to the size of the entire Unite States, it really isn't much land at all.
How may acres are in a circle with a radius of 150 yards?
4840 sq yards = 1 acre area = π × radius² = π × (150 yds)² = 22500π square yards = 22500π ÷ 4840 acres = 4 157/242 π acres ≈ 14.6 acres
What may be calculated from its diameter?
If by "it" you mean a circle, once you know the diameter, you can calculate its radius, its circumference, and its area.
How many acres is 61250 square feet?
1 square mile = 640 acres.A square measuring 625 miles on each side has an area of (625 x 625) square miles.That's equivalent to (625 x 625 x 640) = 250,000,000 acres.===============================================The question may mean that the square measures 25 miles on each side,and its area is 625 square miles.In that case, the solution is (625 x 640) = 400,000acres.
How may square miles is Wisconsin?
Wisconsin's area is 65,556 sq miles.
What can you measure in square inches?
As square inches are a measure of area, you can measure any area you like in square inches. However, depending upon the size of the area: square feet may be more appropriate for the size of a room square yards may be more appropriate for a small piece of land acres may be more appropriate for a larger piece of land square miles may be more appropriate for a very large piece of land.
