asheet of paper is 25cm long and 20cm broad. strips each of width 2cm is cut from all around . find the remaining sheet and total area of the cut out strips
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area of sheet :
L X B= 25×20= 500 cm²
l= 25-2×2 = 21 cm
b=20-2×2 = 16 cm
area of small rectangular sheet form = 21×16
= 336 cm²
L X B= 25×20= 500 cm²
l= 25-2×2 = 21 cm
b=20-2×2 = 16 cm
area of small rectangular sheet form = 21×16
= 336 cm²
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