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Question
A rule for finding the approximate length of diagonal of a square is to multiply the length of a side of the square by 1.414. Find the length of the diagonal when the length of a side of the square is exactly 7.875 cm.
Solution
Length of a side of the square = 7.875 cm
Length of the diagonal of the square
= 1.414 × 7.875 cm
= 11.13525 cm
≈ 11.14 cm
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