slope m1 = 0.29
slope m2 = 0.29
slope m3 = 0.29
slope m4 = 0.29
slope m5 = 0.29
Click the A or B point and drag to change.
在同一平面内,永不相交的两条直线互为平行线。虽然平行线在平面内定义,但也适用于立体几何。
平行线斜率:m1 = m2