# A triangle has sides A, B, and C. Sides A and B have lengths of 4 and 12, respectively. The angle between A and C is (3pi)/8 and the angle between B and C is  (3pi)/8. What is the area of the triangle?

The given data cannot possibly construct an accurate plane triangle. Angle $B = \frac{3 \pi}{8}$ also angle $A = \frac{3 \pi}{8}$. Sides a and b cannot be 4 and 12 respectively.

#### Explanation:

"In any plane triangle, when two angles are congruent then the sides opposite them are also congruent." There is no such triangle.

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