Question on: JAMB Mathematics - 2007
The area of a square is 444 sqcm. Find the length of the diagonal.
A
12\(\sqrt{2}\) cm
B
11\(\sqrt{3}\)cm
C
13 cm
D
12 cm
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Correct Option: A
Area S2 = 144sqcm
s = (\sqrt{144}) = 12 cm
Length of diagonal = (\sqrt{12^2 + 12^2})
= (\sqrt{144}) + 144
= (\sqrt{228})
= 12(\sqrt{2})cm
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