Which sets of ordered pairs show equivalent ratios? Use the grid to help you. Check all that apply. 12
10
8
6
4
2
6
8
x
10 12
(1, 2), (2, 3), (4,7)

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.