Question

Are the complementary angles equal only if the transversal intersects 2 parallel lines?

Answer 1

$$\begin{gathered} \mathrm{Two}\mathrm{angles}\mathrm{are}\mathrm{called}\mathrm{complementary}\mathrm{angle}\mathrm{if}\mathrm{their}\mathrm{sum}\mathrm{is}90°. \\ \mathrm{If}\mathrm{two}\mathrm{complementary}\mathrm{angles}\mathrm{are}\mathrm{equal},\mathrm{then}\mathrm{both}\mathrm{are}\mathrm{equal}\mathrm{to}45°. \end{gathered}$$