Mindy had 1/2 of a can of soda left. If she shared it equally with her sister, how much of the can of soda did they each have? Choose the model that represents the answer. A.1/4 B.1/2 C.2/2 D.1/6

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.