How to Estimate Square Roots

The video tutorial focuses on solving a standardized math test question about estimating square roots. The problem involves determining the diagonal length of a laptop screen given as 2 times the square root of 42 inches. The instructor explains that the square root of 42 is not a perfect square and estimates it to be between 6 and 7, approximately 6.5. By multiplying 6.5 by 2, the estimated diagonal length is calculated to be 13 inches.

What is the diagonal length of Jacinda's laptop screen in inches?

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What two perfect squares does the square root of 42 lie between?

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How do you estimate the square root of 42 using perfect squares?

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What is the estimated value of the square root of 42 that Jacinda used?

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Explain the calculation process Jacinda used to find the estimated diagonal length.

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