A rectangular piece is 20m long and 15m wide from its four corners, quadrants of 3.5m radius have been cut.
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Step-by-step explanation:
l=20m,b=15m
r=3.5m
area of rectangular piece=l×b
=20×15
area of rectangular piece=300sqm
now
area of the part which is cut
4×1/4πr×r=πr×r=22/7×3.5×3.5
=22/7×12.25=22×1.75
=38.5sq.m
area of the remaining part
=area of rectangie-area of part which is cut
=300-38.5=262.5sqm
The area of remaining part is 262.5sqm
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