Explain why there must be at lest two given lines on any given plane

I believe that just a singular line would be just a singular line while 2 or more lines mean they are on a plane. I can't remember this lesson exactly. sorry.

Step-by-step explanation:

there must be at least 2 lines because a plane is defined by 3 noncollinear points.

Step-by-step explanation:

answer: 1, 3 and 5 are correct

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m