Property 5
\(d_1\parallel d_2\parallel d_3\)
1.
\(d_1\parallel d_2\)
\(\Rightarrow \alpha=?\)
2.
\(d_1\parallel d_2\)
\(\Rightarrow \alpha=?\)
3.
\(d_1\parallel d_2\)
\(\Rightarrow \alpha=?\)
Property 6
\(d_1\parallel d_2\)
1.
\(d_1\parallel d_2\)
\(d_3\parallel d_4\)
\(\Rightarrow \alpha=?\)
2.
\(d_1\parallel d_2\)
\(\Rightarrow \alpha=?\)
3.
\(d_1\parallel d_2\)
\(\Rightarrow \alpha=?\)