Posted by parth on Saturday, March 23, 2013 at 12:09am.
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?

maths  Steve, Saturday, March 23, 2013 at 12:14am
160*80  3(pi*20^2)
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