from a rectangular piece of metal sheet of length and breadth 1.60 m and 80 cm respectively 3 circular sheets of 20 cm radius are cut out what area of metal is left
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the area left will be 9028.3 cmsq (approx)
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given ,rectangular sheets length breadth=1.60 and 80 cm respectively
so it's area =l×b
1.60×80
128m^2
now area of three circular sheets
3×πr^2
3×3.5×20×20
1200×3.5
4200cm^2
4200/100×100= 0.42m^2
now area of metal=area of rectangular sheets -area of 3 circular sheets
128-0.42= 127.58m^2
so it's area =l×b
1.60×80
128m^2
now area of three circular sheets
3×πr^2
3×3.5×20×20
1200×3.5
4200cm^2
4200/100×100= 0.42m^2
now area of metal=area of rectangular sheets -area of 3 circular sheets
128-0.42= 127.58m^2
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