Question

its very. urgent...............

Answer 1

180 cm is the area of cross

Answer 2

area of 1 strip=l×b=30×3=90
therefore area of 2 strips =90×2=180sq.cm

Now if they are put cross at 90°there interception will make a square whose area will be. l×l=3×3=9sq.cm
therefore area of cross=area of two strips-area of a interception
=180-9
=179sq.cm





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plz...