If a man earns $200 for his first 40 hours of work in a week and then is paid one and one half times his regular rate for any additional hours, how many hours must he work to make $230 in a week

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.