Segment AB measures 5 units. What is the length, in units, of the image of segment AB after a dilation using: (a) A scale factor of 3? (b) A scale factor of 1/3? (c) A scale factor of t?

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.