TEST 12
1.
\(d_1\parallel d_2\)
\(3m\left(\widehat{ABC}\right)=4m\left(\widehat{BCD}\right)=6m\left(\widehat{CDE}\right)\)
\(\Rightarrow m\left(\widehat{BCD}\right)=?\)
A) \(40\)B) \(80\)C) \(120\)D) \(160\)E) \(200\)
2.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABD}\right)=80^\circ\)
\(m\left(\widehat{FEG}\right)=60^\circ\)
\(\Rightarrow m\left(\widehat{DCF}\right)=\alpha=?\)
A) \(35\)B) \(30\)C) \(25\)D) \(20\)E) \(10\)
3.
\(d_1\parallel d_2\)
\(m\left(\widehat{EDB}\right)=80^\circ\)
\(m\left(\widehat{DBA}\right)=m\left(\widehat{ABC}\right)\)
\(\Rightarrow m\left(\widehat{FAB}\right)=\alpha=?\)
A) \(100\)B) \(110\)C) \(120\)D) \(130\)E) \(140\)
4.
\(d_1\parallel d_2\parallel d_3\)
\(m\left(\widehat{ABC}\right)=50^\circ\)
\(m\left(\widehat{BCD}\right)=m\left(\widehat{DCE}\right)\)
\(\Rightarrow m\left(\widehat{CDF}\right)=\alpha=?\)
A) \(130\)B) \(145\)C) \(155\)D) \(165\)E) \(175\)
5.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=m\left(\widehat{CDE}\right)=70^\circ\)
\(m\left(\widehat{BCD}\right)=100^\circ\)
\(\Rightarrow m\left(\widehat{DEF}\right)=\alpha=?\)
A) \(100\)B) \(110\)C) \(120\)D) \(130\)E) \(140\)
6.
\(d_1\parallel d_2\)
\([AC]\parallel[BD]\)
\(m\left(\widehat{BAC}\right)=48^\circ\)
\(m\left(\widehat{ACD}\right)=m\left(\widehat{DCE}\right)\)
\(\Rightarrow m\left(\widehat{BDC}\right)=\alpha=?\)
A) \(48\)B) \(66\)C) \(98\)D) \(104\)E) \(114\)
7.
\(d_1\parallel d_2\)
\(m\left(\widehat{FEK}\right)=25^\circ\)
\(m\left(\widehat{BFE}\right)=75^\circ\)
\(m\left(\widehat{FBC}\right)=m\left(\widehat{CBA}\right)\)
\(\Rightarrow m\left(\widehat{BCD}\right)=\alpha=?\)
A) \(50\)B) \(60\)C) \(105\)D) \(115\)E) \(125\)
8.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=m\left(\widehat{CBG}\right)\)
\(m\left(\widehat{FDC}\right)=m\left(\widehat{CDE}\right)\)
\(m\left(\widehat{GFD}\right)=100^\circ\)
\(m\left(\widehat{BCD}\right)=70^\circ\)
\(\Rightarrow m\left(\widehat{BGF}\right)=\alpha=?\)
A) \(30\)B) \(35\)C) \(45\)D) \(55\)E) \(60\)