A unique triangle is formed with the following measurements: 6 units, 8 units and 'm' units. The value of 'm' is 14.
The are of △ABC with vertices A(3, 0), B(7, 0) and C(8, 4) is
(a) 14 sq units (b) 28 sq units (c) 8 sq units (d) 6 sq units