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Q: What is the square root of 21 Times Square root 15?

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13.4164079

About 8.66025438 or 75 square rooted

√5 x √15 = 8.66025404

√7 x √15 = 10.2469508

47.4341649

Two times the square root of 15 is the square root of 60. This is not a perfect square so we can only approximate it. It is about 7.75. Numbers such as 2 times the square root of 15 are known as irrational numbers since they cannot be written as a ratio or fraction.

5 times the square root of 15

15 times the square root of two, all over two A formula is this: The diagonal for a square is always the sides of the square times the square root of 2

Look for square numbers that are factors of 540, like 36. The square root of 540 = 6 times the square root of 15.

√2√15 = √(2 x 15) = √30 ( = 5.477225575 ≈ 5.48)

√10 x √6 = 2√15 = 7.745966692

The square root of 60 is also equal to the square root of 15x4 the square root of 4 is 2, and 15 is not a perfect square, so the answer is (square root of 15) x 2

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