Q: How is the value of pi equals 3.142?

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The value of pi has been calculated to billions of decimals, but in actual practice, you can usually round it to about 5, or perhaps 9, significant digits.

Pi equals the circumference of a circle divided by it's diameter. This value is approximately 3.14159265359, but goes on indefinitely. For most sums 3.14 is acceptable, or just use the pi button on a scientific calculator.

You will get pi since area of a circle equals pi* times radius squared....by Mona Martinez

The circumference of a circle equals the diameter * pi, where pi is a constant with an approximate value of 3.14. So, to answer your question, the circumference of your circle is about 6.283 inches.

Pi is approximately equal to 3.14159265. It is an irrational number, so it cannot be represented as a fraction and its decimal places never end or repeat, so it does not have an exact value.

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3142 is not divisible by 4, therefore 3142 will not be a leap year.

Pi times pi equals 9.869604401089358 (to 15 decimal places).The square value 9.8696 is commonly used.If you use (pi)2 = 10 in your calculations, your answer is only wrong by about 1.3% .

It is not practical to work with the actual value of pi, because there is no actual value of pi. We all know that pi more or less equals 3.14159265 . . . but the number of decimal points in pi never ends. 3.14159 is extremely precise, and works for most uses.

The value of pi has been calculated to billions of decimals, but in actual practice, you can usually round it to about 5, or perhaps 9, significant digits.

xlog10 = x This is a simple rule of logs, because log(base10)10 = 1. Any value multiplied by one equals itself. So pi*log10 = pi(1) = pi.

Pi equals the circumference of a circle divided by it's diameter. This value is approximately 3.14159265359, but goes on indefinitely. For most sums 3.14 is acceptable, or just use the pi button on a scientific calculator.

Circumference equals Diameter times Pi, OR Diameter equals (Circumference)/(Pi). In this case, Diameter equals (130mm)/(Pi or 3.14159) equals 41.38mm

I think it is 3.14 that equals to pi when u solve it

You will get pi since area of a circle equals pi* times radius squared....by Mona Martinez

A pi equals 3.1415326535897932384626433832795028841971693993751058209749445923

Percentage error = 100*error/standard = 100*(3.98-3.14)/3.14 = 100*0.84/3.14 = 84/3.14 = 26.75%

The value of Pi is 3.14 so the value of Pi by 2 is 6.28.