如圖所示,粗線區(qū)域面積為():
A.14676.9772 B.14676.9773 C.14676.9774 D.14676.9775
如圖所示,y的長(zhǎng)度為():
A.60.5339 B.60.5338 C.60.5337 D.60.5336
如圖所示,粗線區(qū)域周長(zhǎng)為():
A.333.3875 B.333.3876 C.333.3877 D.333.3878