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Measuring Tips and Tricks

Measuring isn't as easy as getting out a ruler or yardstick. Tony Kramer, of DIY Tools & Techniques, offers some helpful measuring hints to make the job faster and more accurate.

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diagonals must be equal if a square is perfect
Photo 3 of 4To determine whether you have a perfect square (equal sides with four 90-degree angles), measure and compare the diagonals. They must be equal.

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