The condition \frac {a}{a1} = \frac{b}{b1} = \frac{c}{c1} is for a plane and a line are _____ to each other.

(a) perpendicular

(b) parallel

(c) differential

(d) tangential

I have been asked this question by my college professor while I was bunking the class.

This intriguing question comes from Three Dimensional Geometry in portion Three Dimensional Geometry of Mathematics – Class 12

NCERT Solutions for Subject Clas 12 Math Select the correct answer from above options

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