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The area of a circle is calculated by multiplying pi by r2. Where r = the radius of the circle.
IF we use 3.1416 as our value of pi, this means that a circle with a radius of 1 inch has an area of 3.1416 square inches. Rounding this to one decimal place gives us 3.1 square inches.
Other radius - area ratios are
2 .......... 12.5665 - rounded = 12.6
3 .......... 28.2744 - rounded = 28.3
4 .......... 50.2656 - rounded = 50.3
5 .......... 78.54 - - - rounded = 78.5
6 ......... 113.0976 - rounded = 113.1
7 ......... 153.9384 - rounded = 153.9
8 ......... 201.0624 - rounded = 201.1
9 ......... 254.4696 - rounded = 254.5
10 ....... 314.16 - - - rounded = 314.2
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What is the square root of 3?
The square root of 3 is 1.73205081* * * * *or -1.732050812.23606798
What is 0.7 x 4?
Oh, dude, like, 0.7 times 4 is 2.8. It's like, you just move the decimal point over one place to the right and boom, there's your answer. Easy peasy lemon squeezy.
What is the one millionth digit of Pi?
15. (or 1 depending on what you mean in the question)I thought it would prove difficult to answer this but it turns out there are websites which do list this many digits! One of which suggests that the 1 millionth digit of pi is 1. However, I believe it is referring to the 1 millionth digit after the decimal point.So if we include the "3" at the start of pi (before the decimal point), and we should if we are talking digits, then we would want the digit one place before this, which apparently is 5.Please note: I have looked at 2 independent sources for this answer but still can not vouch 100% for their accuracy.
What is 0.7 x 10?
Well, isn't that just a happy little math problem! When you multiply 0.7 by 10, you'll find that the answer is 7. It's just like adding a zero to the end of 0.7, giving you a nice, round number to work with. Just remember, there are no mistakes in math, only happy accidents!
What is the definition of a confluence?
A place where two rivers join.
How do you calculate uncertainty?
There are several ways to calculate uncertainty. You can round a decimal place to the same place as an uncertainty, put the uncertainty in proper form, or calculate uncertainty from a measurement.
What is the area of a circle that has a diameter of 6.5cm?
33.1830724 or 33.2 square cm to one decimal place
What is the circumference of a circle if it's diameter is 7 inches to 1 decimal place?
The circumference is equal to r2*pie or 38.5 inchesAnother answer:Circumference of a circle = 2*pi*radius or pi*diameterCircumference = 7*pi = 21.99114858 or 22.0 inches to one decimal place.
What is an area of a circle with a radius of 5 cm?
Area of circle: pi*5^2 = 78.5 square cm rounded to 1 decimal place
How do you calculate 10 percent?
The easiest way is to shift the decimal point one place to the left.
How do you calculate 10 percent of 16.99?
You can do it in your head. All you do is move the decimal point one place left...
Area of a circle with a radius of 3cm?
Area of a circle = pi x radius2 The area of a circle with radius 3 cm = pi x 32 = 28.27433388 = 28.3 cm2 (1 decimal place)
What is the circumference of a circle if the area is 300 square centimeters?
The radius of the circle is 9.772 cm rounded to 3 decimal place and the circumference of the circle is 2*pi*9.772 = 61.399 cm rounded to 3 decimal places
What is ten percent of 1548.32?
calculate 10%, merely move the decimal point over one place. answer 154.832.
What does dp mean in maths?
decimal place
How many square feet are in a 15 foot circle?
If the circle has a diameter (all the way across) of 15 feet,then its area is 176.7 square feet, rounded to one decimal place.
What is 360 degrees as a decimal?
It is 360 degrees. A decimal is simply a way of representing a number so that the place value for any digit is ten times the place value of the digit to its right. The key words there are "ten times". There is no requirement for a decimal point and any zeros after a decimal point are misleading.
