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P Find the Value Of: √ 45 × √ 20 - Mathematics

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Question

Find the value of:

\[\sqrt{45} \times \sqrt{20}\]

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Solution

We have:

`sqrt45xxsqrt20=sqrt(3xx3xx5xx2xx5)`

=`sqrt(3xx3xx2xx2xx5xx5)`

=`30`

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Chapter 3: Squares and Square Roots - Exercise 3.6 [Page 48]

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RD Sharma Mathematics [English] Class 8
Chapter 3 Squares and Square Roots
Exercise 3.6 | Q 2.5 | Page 48

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