please silve my problem
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to find the area of remaining part we have to subtract total area of triangle from that of rectangle.
area of rectangle= l×b
12×8=96
area of triangle AOB is 1/2× B×H=1/2×12×3=18
area of remaining part is 96-18=78
so the answer is 78 cm^2
area of rectangle= l×b
12×8=96
area of triangle AOB is 1/2× B×H=1/2×12×3=18
area of remaining part is 96-18=78
so the answer is 78 cm^2
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