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It is a real number in the sense that it is an irrational number which can't be expressed as a fraction and its length is 5 times the square root of 2

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โˆ™ 2014-12-06 10:44:45
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โˆ™ 2014-12-05 22:45:51

Yes it is.

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Q: Is the length diagonal of a square with side 5 a real number?
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What is a real world example of irrational numbers?

The length of the diagonal of any square whose sides are a whole number of units.


How is radical used in real life?

In the simplest case, it is use to find the diagonal length of a unit square.


Who were the mathematicians who contributed to the discovery of real numbers?

It has been known from very ancient times that the length of the diagonal of a unit square is not a rational number. There were no specific mathematicians who "discovered" real numbers. Furthermore, all mathematicians of any significance, contributed to our understanding of real numbers.


Can the area of a square be negative?

not in the real world. The area of a square = The length of a side, squared. Any number squared is positive.


Can a square of real number is a real number?

The square of a real number is always a real number.


What is the length of a rectangle whose diagonal is 32 inch?

The diagonal of a rectangle does not provide enough information to determine the length of the rectangle. Let L be any real number such that 32/sqrt(2) < L < 32. let B = sqrt(32^2 - L^2) Since L < 32 the above square root exists, and since L > 32/sqrt(2), B < L. So the rectangle with sides of L and B will have a diagonal of 32 inches. But L is any of an infinite number of possible real numbers. Therefore there are infinitely many possible solutions.


What is a real world example of a radical function?

The diagonal of a unit square, for example, is radical(2).


Why is the square of a negative number not a real number?

I thought it was real... square of -x is the same as the square of +x


Can a number with a square root be a real number?

Of course, not only can it be a real number but it is a real number. When you take the square root times itself, the result is a number that is real.


Is the square root of 7 a real number?

The square root of seven is a real number, but it is not a whole number.


Is 23 a square number?

It is not the square of a whole number; but it is the square of a real number. If you calculate the square root of 23, you will get a real number. That real number times itself will equal 23. But the square root will not be a simple whole number. It will have an endless decimal fraction.


Is the square root of 0 a real number?

The square root of 0 is 0, which is a real number.

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