From a rectangular sheet of paper ABCD with AB = 40 cm and AD = 28 cm, a semi-circular portion with BC as diameter is cut off. Find the area of remining paper (use π = 22/7)
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Answer:
504cm^2
Step-by-step explanation:
in a triangle opposite sides are equal
so BC =28
so diameter of the circle =28
radius = 14
so area of the semi circle = (πr^2)/2
= (22/7)*14*14
= 616cm^2
and now area of the rectangle = 40*28=1120
so remaining area = 1120-616 =504
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