Find the acute angle between lines with slopes 12 and 3.

  1. 45^circ
  2. 90^circ
  3. 30^circ
  4. 60^circ
Answer

A) 45^circ

tantheta = m2 - m11 + m1 m2 = 52 52 = 1, so theta = 45^circ. SLO M-09-B-10 · Knowledge

Mathematics MCQ · More Angle Between Lines MCQs · Practise