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2017-06-19 20:31:12
diện tích hình tròn là :
2,11*2,11*3,14= 13,979594 ( cm 2)
đáp số : 13,979594 cm2
NHA ! Noo Phước Thịnh
diện tích hình tròn là :
2,11*2,11*3,14= 13,979594 ( cm 2)
đáp số : 13,979594 cm2
NHA ! Noo Phước Thịnh