The triangle has vertices A(0, 0), B(5, 0), C(1, 3). Find tan A.

  1. 4
  2. -3
  3. 13
  4. 3
Answer

D) 3

Slopes: mAB = 0, mAC = 3. Using tan A = mAC - mAB1 + mABmAC (with the sign that gives the interior angle) we get tan A = 3. SLO M-09-B-12 · Knowledge

Mathematics MCQ · More Angle Between Lines MCQs · Practise