how many square meter of class will be required for a window which has 12 window panes each pane measuring 25cm by 16cm
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the area of one window pane= 25×16
=400cm sq.
so area of 12 window panes = 400 cm sq. × 12
=48000 cm sq.
=400cm sq.
so area of 12 window panes = 400 cm sq. × 12
=48000 cm sq.
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