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Q: What is the formula to find out the square root of 20?

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Use a calculator.

square root of 20 = square root of 4X5=square root of 4 X square root of 5=2*square root of 5.

It is 2*sqrt(5).

The square root of 75 is 8.66 and the square root of 20 is 4.47.

square root of 20 = square root of 4 * square root of 5. square root of 4 = 2, so your answer is 2 square root of 5.

If you mean the square root is 20, the answer is 400. If you mean the square root of 20, the answer is about 4.47.

the square root of 20 in it's simplest form is ^2 square root of 5

Because the Square Root of negative 1 = i (The imaginary square root of negative 1.) and where if the square root of one number and of another number are multiplied together, the answer is equal to the square root of the two numbers combined. (Square root of 8 times the square root of 5 equals the square root of 40.) So... √(-20) =√20×√(-1) =√4×√5×i =2i(√5) The answer is 2i times the square root of 5. square root (-20) = square root (-1) x square root (20) square root (-20) = i x 4.47213595 square root (-20) = 4.47213595 i

The square root of 400 is 20. 20 times 20 is 400. * * * * * -20 is also a square root of 400.

Square root of 400 simplified is 20.

Square root of 20 is 2*SQRT(5) or approx. 4.472 Square root of 40 is 2*SQRT(10) or approx. 6.325

The square root of 20 simplified is ±4.5

The square root of 20 is simplified as: ± 4.5

The square root of 20 is an irrational number

The square root of 36 is 20% more than the square root of 25.

The square root of 207600 is about 455.63142999578 or 20 times the square root of 519.

The sqare root of 20.

The square root of 20 is: ± 4.472136The square root of 20 is ± 4.472136 (to 7 sf).A square root of a number is the number that when multiplied by itself equals the given number.

square root of (6 x 20) = square root of (120) = 10.95

-2.569678

20 is not the square of an integer, the square root of 20 is approximately equal to 4.472.

4.472135955 is the sq. root of 20.

10 root 2 ie 14.14

The square root of 400 is 20.

42 is 16, less than 20 52 is 25, more than 20. so, 20 is not a perfect square, and does not have an integral square root. But, the square root of any integer is either an integer itself, or irrational. So, square root 20 is irrational