\(32,\\ \left\{{}\begin{matrix}a\perp c\\b\perp c\end{matrix}\right.\Rightarrow a//b\\ \Rightarrow\widehat{D}+\widehat{C}=180^0\left(trong.cùng.phía\right)\\ \Rightarrow\widehat{D}=180^0-70^0=110^0\\ 33,\\ \left\{{}\begin{matrix}a\perp c\\b\perp c\end{matrix}\right.\Rightarrow a//b\\ \Rightarrow\widehat{E}+\widehat{F}=180^0\left(trong.cùng.phía\right)\\ \Rightarrow\widehat{E}=180^0-50^0=130^0\)