英语奥数题,求翻译和解答过程
ABCDisasquarewithBC=12cm.⌒BOCand⌒DOCaresemicircles.Intermsofπ(pi,圆周率),whatistheareaof...
ABCD is a square with BC=12cm. ⌒BOC and ⌒DOC are semicircles. In terms of π(pi,圆周率),what is the area of the shaded region?( )
A.18π-36 B.72 π-144
C.144-36π D.36-9π 展开
A.18π-36 B.72 π-144
C.144-36π D.36-9π 展开
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