Answers

2015-09-16T20:46:48+05:30
First find the area of the rectangle:
l*b=9*4=36
now since all the sides of a sqr are equal and area of sqr=side*side:
side of sqr=sqr root of 36=6
therefore , perimeter of sqr=6*4=24m
diagonal will turn the sqr into 2 congruent triangles
, of which the 2 sides are 6m and 6m.
therefore the 3rd side can be found using pythagoras theorem:
(3rd side)^2=6^2+6^2
                =36+36
                =72
3rd side=sqr root of 72
           =6root2

hope you understand and this helped...
peace
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