If two angles of a triangle are found to be 45^circ and 75^circ, the third angle is:

  1. 60^circ
  2. 30^circ
  3. 90^circ
  4. 120^circ
Answer

A) 60^circ

Angles of a triangle add up to 180^circ: 180 - 45 - 75 = 60. SLO M-09-B-12 · Knowledge

Mathematics MCQ · More Angle Between Lines MCQs · Practise