How many triangles ABC can be constructed with angle A = 30^circ, b = AC = 8 cm and a = BC = 4 cm?

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

B) 1

The height from C is h = bsin A = 8 12 = 4 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