(2/3)^2 without exponents

Which of these triangle pairs can be mapped to each other using a single translation? cof hn

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.

Which of the following statements is a true conclusion that can be made from the scaled bargraph?