A, B and C form the vertices of a triangle. BC = 5.7cmBC=5.7cm and angle CBA = 137 degrees∠CBA=137degrees. Given that the area of the triangle is 10.4 cm^210.4cm2, what is the perimeter of the triangle?
1 Answer
Jul 31, 2018
Explanation:
Recall that, the Area of
Further, by the cosine-rule,
Thus, we have,
Hence, the reqd. perimeter