如圖所示,已知該正三邊形邊長為60,圖中正七邊形的邊長為多少?()
A.15.03 B.15.04 C.16.04 D.16.03
A.Pan B.Move C.Zoom D.Zoom/Window
如圖所示,AB的長度為?()
A.79.76 B.77.76 C.80.76 D.78.76