The area of a square is 40.5 cmÂ². Find the length of its diagonal (

1.	The area of a square is 40.5 cmÂ². Find the length of its diagonal (in cm).
A.	9
B.	4.5
C.	18
D.	13.5
Answer» B. 4.5

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The area of a square is 40.5 cmÂ². Find the length of its diagonal (in cm).

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