Problem:
A side-angle-side triangle has sides $2.4$ and $5.68$ and an angle $143 {}^{\circ}$. Determine the area, circumradius, inradius, and semiperimeter of the triangle.
Answer:
Area: $4.1$ 
Semiperimeter: $7.91$ 
Circumradius: $6.42$ 
Inradius: $0.52$
{'source': 'AMPS', 'file': 'amps/mathematica/geometry/triangles/87703.txt'}