What is the distance etween (-1,2) and (2,7)

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is

What type of symmetry does a rhombus have?

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.