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593.44 sq.cm
Step-by-step explanation:
*firstly let's Find the area of square whose side is 30 cm it's area is s×s =900 sq.cm .
*area of trapezium is 1/2(a+b)h=30+10.6/2 ×8.8 is 178.64 sq.cm.area 4 trapezium is 178.64×4 714.56 sq.cm.
*therefore area of shaded region is 900-714.56=184.44 sq.cm
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