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# Engineering Mechanics - General Principles - Discussion

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"Actions speak louder than words."
- (Proverb)
7.

Determine the length of side AB if right angle ABC is similar to right angle A'B'C':

 [A]. AB = 5.42 [B]. AB = 3 [C]. AB = 5 [D]. AB = 4

Explanation:

No answer description available for this question.

 Naveen said: (Fri, Dec 10, 2010 12:57:46 AM) B'C'=(36^2+15^2)^1/2 B'C'=39 From similar Triangles AB/A'B' =13/39 AB=5

 Saurabh Khatri said: (Tue, Jun 7, 2011 05:05:57 AM) Here. C'B'=39. But CB=13. So CB=1/3 part of C'B'. Then AB=1/3 part of A'B' (triangles are similar). So AB=5.

 M.Prakash said: (Mon, Jul 4, 2011 01:43:59 AM) How to solve this problem explain?

 Kaushik Gamit said: (Wed, Oct 5, 2011 01:08:21 PM) (36^2+15^2)^1/2=39 According to A'B'C' tanx=36/15 x=67.38 is equals to

 Ashwin said: (Mon, Nov 28, 2011 10:22:30 PM) B'C'=(36^2+15^2)^1/2 B'C'=39 From similar Triangles BC/B'C' =13/39 =0.33333 AB=A'B' x 0.333 = 5.