Question

Answer 1

Do \(a\perp n\)
mà \(b\perp n\)
\(\Rightarrow\)\(a//b\)
\(\Rightarrow x+y=180^o\)(Trong cùng phía)
Mà \(5x=13y\)
\(\Rightarrow\dfrac{x}{13}=\dfrac{y}{5}=\dfrac{x+y}{13+5}=\dfrac{180^o}{18}=10^o\)
\(\Rightarrow x=130^o;y=50^o\)
\(\Rightarrow2x+3y=2\cdot130^o+3\cdot50^o=410^o\)

Answer 2

410
(Giải thích sau)