A, B and C form the vertices of a triangle. #BC = 5.7cm# and #angle CBA = 137 degrees#. Given that the area of the triangle is # 10.4 cm^2#, 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