2007
Mathematics
67ca00ce0c643c71d77dee1f
The area of a square is 144 sqcm. Find the length of the diagonal.
A.
13 cm
B.
12√2 cm
C.
12 cm
D.
11√3 cm
Correct Answer: 12√2 cm
Explanation
Area of a square = x * x 144 = x2 √144 = x 12 = x But d2 = 122 + 122 = 144 + 144 = 288 d = √288 = √144 x 2 = 12√2
Area of a square = x * x 144 = x2 √144 = x 12 = x But d2 = 122 + 122 = 144 + 144 = 288 d = √288 = √144 x 2 = 12√2THIS WEEK's
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