Captain Jack has a sailboat with a triangular sail that has a height of 20.5 m and a base of 6 m. The rules of a sailing competition state that each sail must have an area of no more than 60 square meters. Does Captain Jack’s sail qualify him for the competition?

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.