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Squares and Square Roots — Maths STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8MathsSquares and Square Roots1 Mark
Question
Find the value of:
$\sqrt{72}\times\sqrt{338}$
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Answer

We have,
$\sqrt{72}\times\sqrt{338}=\sqrt{72\times338}$
$=\sqrt{2\times2\times2\times3\times3\times2\times13\times13}$
$=\sqrt{2\times2\times2\times2\times3\times3\times13\times13}$
$=2\times2\times3\times13$
$=156$

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