TEST 9
1.
\(m\left(\widehat{COD}\right)=m\left(\widehat{DOE}\right)=30^\circ\)
\(m\left(\widehat{EOF}\right)=m\left(\widehat{FOB}\right)=40^\circ\)
\(\Rightarrow m\left(\widehat{AOC}\right)=\alpha=?\)
A) \(40\)B) \(50\)C) \(55\)D) \(60\)E) \(70\)
2.
\(m\left(\widehat{AOC}\right)=50^\circ\)
\(m\left(\widehat{COD}\right)=m\left(\widehat{DOE}\right)\)
\(m\left(\widehat{EOF}\right)=m\left(\widehat{FOD}\right)\)
\(\Rightarrow m\left(\widehat{DOF}\right)=?\)
A) \(50\)B) \(60\)C) \(65\)D) \(70\)E) \(90\)
3.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=40^\circ\)
\(m\left(\widehat{CDE}\right)=30^\circ\)
\(\Rightarrow m\left(\widehat{BCD}\right)=\alpha=?\)
A) \(30\)B) \(40\)C) \(50\)D) \(70\)E) \(110\)
4.
\(d_1\parallel d_2\)
\(2m\left(\widehat{ABC}\right)=3m\left(\widehat{CDE}\right)\)
\(m\left(\widehat{BCD}\right)=75^\circ\)
\(\Rightarrow m\left(\widehat{CDE}\right)=?\)
A) \(15\)B) \(30\)C) \(45\)D) \(50\)E) \(55\)
5.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=50^\circ\)
\(m\left(\widehat{FEG}\right)=60^\circ\)
\(\Rightarrow m\left(\widehat{ADG}\right)=\alpha=?\)
A) \(50\)B) \(55\)C) \(60\)D) \(100\)E) \(110\)
6.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABE}\right)=130^\circ\)
\(m\left(\widehat{DCE}\right)=70^\circ\)
\(\Rightarrow m\left(\widehat{CEB}\right)=\alpha=?\)
A) \(50\)B) \(60\)C) \(70\)D) \(80\)E) \(90\)
7.
\(d_1\parallel d_2\)
\([ED]\perp[CF\)
\(m\left(\widehat{ABC}\right)=120^\circ\)
\(m\left(\widehat{BCF}\right)=100^\circ\)
\(\Rightarrow m\left(\widehat{DEG}\right)=\alpha=?\)
A) \(130\)B) \(100\)C) \(60\)D) \(50\)E) \(40\)
8.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=40^\circ\)
\(m\left(\widehat{DEF}\right)=50^\circ\)
\(\Rightarrow m\left(\widehat{BCD}\right)=m\left(\widehat{CDE}\right)=\alpha=?\)
A) \(115\)B) \(125\)C) \(135\)D) \(145\)E) \(150\)