Correct answers only ! i cannot retake order the steps for multiplying/dividing rational expressions correctly. factor the numerator and denominator completely. divide out common factors (math for division, flip the second fraction (kcf). multiply the simplified fractions.

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.