按照圖畫出所示圖形,求剖面線區(qū)域的面積。()
A.106.3382 B.106.3823 C.106.3283 D.106.3832
按照圖畫出所示圖形,求剖面線區(qū)域的周長。()
A.188.4956 B.188.4659 C.188.4965 D.188.4569
按照圖畫出所示圖形,求圓弧的長度F的數(shù)值。()
A.296.0127 B.296.0172 C.296.0712 D.296.0721