A 4x – 3
B 5x + 3
C 5x – 3
D 6x – 3
Correct Answer: Option D
suppose, অপর বাহুর দৈর্ঘ্য =m here, 2(4x + 3 +m ) = 20X or, 4x + 3 +m = 10x or,m=6x – 3
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