Problem:
A triangle has sides $12, 14, 18$. Determine the area, circumradius, inradius, and semiperimeter of the triangle.
Answer:
Inradius: $4 \sqrt{\frac{10}{11}}$ 
Circumradius: $\frac{189}{2 \sqrt{110}}$ 
Area: $8 \sqrt{110}$ 
Semiperimeter: $22$
{'source': 'AMPS', 'file': 'amps/mathematica/geometry/triangles/57971.txt'}