pls slove 9,10,11 sum
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9)
Solution : If the floor of hall is rectangular
Therefore, Area of rectangular = length x breadth
= 30 x 16
Area of rectangular = 480 sq.m
Therefore, The cost for fixing the floor = Area of rectangular x price
=480 x 40
= ₹19,200
10) Side of square = Perimeter/4
=240/4
= 60
Area of square = side x side
= 60 x 60
= 3600
Solution : If the floor of hall is rectangular
Therefore, Area of rectangular = length x breadth
= 30 x 16
Area of rectangular = 480 sq.m
Therefore, The cost for fixing the floor = Area of rectangular x price
=480 x 40
= ₹19,200
10) Side of square = Perimeter/4
=240/4
= 60
Area of square = side x side
= 60 x 60
= 3600
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