either two million, 39, 48,000, or 6 billion
radius = 92/(2*pi) = 14.642 feet to 3 decimal places
It is: 80/360 times 25pi = 17.453 square meters rounded to 3 decimal places
It is 12/360 times 12*pi = 2/5*pi or about 1.257 feet rounded to 3 decimal places
To find the area of a circle based on its radius, multiply its radius squared by pi. Don't forget to square the radius before multiplying by pi, based on rules of BODMAS where you find powers of numbers before you multiply them.In this instance, (4.4 x 4.4) = 19.36. Multiplying this by pi gives us, accurate to two decimal places, 60.82. Don't forget to include the appropriate measurement. If the original measurement of the radius of the circle was in centimetres, then the area should be expressed in square centimetres. If the original measurement of the radius was in inches, then the area should be expressed in square inches.
Well first you find on your calculator you need to find pi which looks something like this π. Now to find the curcumference of any circle the formula is pi multiplied by the diameter. The radius is 16 metres, and the diameter of any circle in life is two multiplied by the radius. So you do π times by 32 which equals 100.53(I rounded it off to the nearest 2 decimal places). or even easier 3.14 x radius 2 l l l PI times raduis 2 and now for area 2 times 3.14 times raduis
radius = 92/(2*pi) = 14.642 feet to 3 decimal places
Radius = square root of (163.86/pi) = 7.222 yards to three decimal places
Radius = square root of 30/pi = 3.09 to 2 decimal places Diameter = 2*3.09 = 6.18 to 2 decimal places
Radius = 273/(2*p)i = 43.45 inches rounded to two decimal places
To find the number of decimal places in a product of decimal numbers, add up the total number of decimal places in each of the factors. For example, if you have 2.5 multiplied by 4.75, there are two decimal places in 2.5 and two decimal places in 4.75, so the product will have a total of four decimal places.
Area of base of cylinder 2355/10 = 235.5 square units Radius is the square root of (235.5/pi) = 8.658 units rounded to 3 decimal places
To find the answer, multiply 1.45 by 0.64 just at you would if there were no decimals. When you get the answer, count the number of decimal places (Count from the right). There are 4 decimal places. Place a decimal 4 places from the right in your answer. 1.45 X 0.64 is 0.9280.
When you multiply decimals, you just ignore the decimal until the end, then, to find the amount of decimal places in your answer, you add the amount of decimal places in both your factors
The formula for area of a circle isA=pi*r2where A=area, and r=radius of circlethe radius is half the diameter (D=2r), so A = pi*2.52= 19.63 (to 2 decimal places)
Move the decimal two places to the left.
find the next decimal place.
To do this, you first find the radius of the circle. To do this, you divide 16 by pi, which gives 5.09 (to two decimal places). Half of this gives you the radius - around 2.55. You then square the radius, in this case giving approximately 6.48, and multiply it by two, which yields the answer of roughly 12.97. There's your answer - 12.97 inches squared (to two decimal places). N.B. These averages may seem slightly off, but I did the calculations on a calculator, simplifying each step.