Question

,

Answer 1

two lines uniquely determine a plane

Answer 2

since the line \(n\) is perpendicular to both \(j1\) and \(j2\), \(n\) is also perpendicular to the plane determined by \(j1\) and \(j2\)

Answer 3

So j1 and j2 aren't perpendicular?

Answer 4

Need not be.

Answer 5

How do you know theyre not?

Answer 6

read the first option again

Answer 7

A. Lines j1 and j2 must be perpendicular
^^^

Answer 8

From the given data, j1 and j2 can intersect at any angle. it need not be 90 degrees. so you strike off option A.

Answer 9

So C?

Answer 10

Yes !