Q184. The two lines: 7x + 2y + 3 = 0 and 21x + 6y + 9 = 0 are:Mathematics — Analytic Geometry — Question 184 of 217A. IntersectingB. PerpendicularC. ParallelD. CoincidingPractice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →