Could you check my answer, whether I done it right or wrong?
If there was some mistakes in my calculation/answers, would you mind explain why?
(+Information= RST is a straight line)
![Could you check my answer whether I done it right or wrongIf there was some mistakes in my calculationanswers would you mind explain whyInformation RST is a str class=](https://us-static.z-dn.net/files/d6d/17e6a7fff1837da5890df23e11226fd6.jpg)