What is the minimum number of straight lines that is need...
What is the minimum number of straight lines that is needed to construct the figure?
11
13
15
21
Correct answer is B
The figure may be labelled as shown.
The horizontal lines are AE and JF i.e. 2 in number. The vertical lines are AJ, CH and EF i.e. 3 in number.
The slanting lines are AG, BF, JD, IE, AB, DE, JI and FG i.e. 8 in number.
Total number of straight lines needed to construct the figure = 2 + 3 + 8 = 13.
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