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
按照圖畫出所示圖形,求小圓半徑B的數(shù)值。()
A.13.1699 B.13.1966 C.13.1969 D.13.1996
按照圖畫出所示圖形,求圖所示兩直線的夾角A的度數(shù)。()
A.88.4481 B.88.4814 C.88.4841 D.88.4184