Mathematics, 18.05.2021 19:40 mindofnyny

A, B and C form the vertices of a triangle. BC = 6.9cm and ∠CBA = 137°.
Given that the area of the triangle is 12.6cm2, calculate the perimeter of the triangle rounded to 1 DP.

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A, B and C form the vertices of a triangle. BC = 6.9cm and ∠CBA = 137°.
Given that the area of...