posted measuring 20 CM X 16 cm is pasted on a sheet of cardboard such that there is a margin of 3.5 CM along each side of the poster find. a) total area of margin. b) the cost of cardboard used at the rate of Rupees 1. 50 per square centimetre
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Total Area of margin=2(lb+bh+lh)
=2(20×16+16×3.5+20×3.5)
=892 cm^2
Cost of cardboard=892×1.50
=1388rupees
=2(20×16+16×3.5+20×3.5)
=892 cm^2
Cost of cardboard=892×1.50
=1388rupees
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