How many triangles ABC can be constructed with angle A = 30^circ, b = AC = 12 cm and a = BC = 6 cm?

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

D) 1

The height from C is h = bsin A = 12 12 = 6 cm. Since a = h, the arc just touches the base: one right-angled triangle. SLO M-09-B-30 · Knowledge

Mathematics MCQ · More Construction of Triangles MCQs · Practise