按照圖畫出所示圖形,求剖面線區(qū)域的面積。()
A.715.3734 B.715.3374 C.715.3743 D.715.3437
A.1035.5472 B.1035.5427 C.1035.5274 D.1035.5247
A.2701.7213 B.2701.7123 C.2701.7231 D.2701.7312