Question 1177620
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            It looks like  @mananth did not read the post,  at all.


            Otherwise,  he  (or she)  would not write something  IRRELEVANT  to the problem.


            I came to bring you the correct solution and the correct answer.



<pre>
The diagonals of a rhombus (of any rhombus) cut it in 4 (four) congruent right-angled triangles.


One leg of such triangle is half of one diagonal.

The other leg of such triangle is half of the other diagonal.


So, you have 4 right-angled triangles with the legs of 7 and 8 units each.


Then the hypotenuse of each such a triangle is  {{{sqrt(7^2+8^2)}}} = {{{sqrt(49+64)}}} = {{{sqrt(113)}}} = 10.63 units (rounded).


It is the side length of any of 4 (four) sides of the rhombus.    <U>ANSWER</U>
</pre>

Solved.



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For your safety, &nbsp;ignore the post by &nbsp;@mananth, &nbsp;since it is &nbsp;IRRELEVANT &nbsp;to the problem.



As &nbsp;I &nbsp;just said several years ago, &nbsp;@mananth needs two helpers to work at this forum successfully:


    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;- one assistant to read the problems to him &nbsp;(or to her) &nbsp;and explain their meaning,


    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;- and the other assistant to edit and re-write his &nbsp;(or her) &nbsp;solutions after him &nbsp;(or her).



Currently, &nbsp;I alone perform the duties of these two assistants.


And I can not say that I am extremely happy of it . . .