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03 Feb 2022, 02:30
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B
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86% (00:55) correct
14%
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Five identical squares are arranged as shown above to form one large shape. If the total area of the shape is 405, what is the perimeter of the shape?
A. 96
B. 108
C. 144
D. 162
E. 180
Attachment:
2.png [ 4.88 KiB | Viewed 1495 times ]
03 Feb 2022, 03:09
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405 / 5 = 81 = 9 * 9
Each side of the square is 9.
the perimeter of the shape = (3 * 4) * 9 = 108
Answer is (B).
Each side of the square is 9.
the perimeter of the shape = (3 * 4) * 9 = 108
Answer is (B).
03 Feb 2022, 07:35
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Area of a single square = 405/5 = 81
Side of a square = Sqrt (81) =9; So, the perimeter = 9*(3*4) = 108
I think B.
Side of a square = Sqrt (81) =9; So, the perimeter = 9*(3*4) = 108
I think B.
