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Property 10
1.
\(\Rightarrow\alpha=?\)
Show answer
\(30\)
2.
\(\Rightarrow\alpha=?\)
Show answer
\(20\)
3.
\(\Rightarrow\alpha=?\)
Show answer
\(45\)
Property 11
\(2\alpha+2\beta=180^\circ\)
\(\alpha+\beta=90^\circ\)
1.
\(\Rightarrow\alpha=?\)
Show answer
\(30\)
2.
\(\Rightarrow\alpha=?\)
Show answer
\(75\)
3.
\(\Rightarrow\alpha=?\)
Show answer
\(60\)