How many triangles ABC can be constructed with angle A = 30^circ, b = AC = 10 cm and a = BC = 12 cm?

  1. 2
  2. 1
  3. 3
  4. 0
Answer

B) 1

The height from C is h = bsin A = 10 12 = 5 cm. Since a = 12 ge b = 10, the arc cuts the base line on only one side of A: one triangle. SLO M-09-B-30 · Knowledge

Mathematics MCQ · More Construction of Triangles MCQs · Practise