A. 8.5 m
B. 17 m
C. 34 m
D. 51 m
Let the breadth of the plot be b m.
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Length of the plot = 3 b m
(3b)(b) = 867
3b2 = 867
b2 = 289 = 172 (b > 0)
b = 17 m.
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