TEST 6
1.
\(d_1\parallel d_2\)
\(m\left(\widehat{BCD}\right)=110^\circ\)
\(m\left(\widehat{CDE}\right)=30^\circ\)
\(\Rightarrow m\left(\widehat{ABC}\right)=\alpha=?\)
A) \(90\)B) \(100\)C) \(120\)D) \(130\)E) \(140\)
2.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABD}\right)=m\left(\widehat{CDB}\right)\)
\(m\left(\widehat{BCD}\right)=60^\circ\)
\(\Rightarrow m\left(\widehat{BDE}\right)=\alpha=?\)
A) \(100\)B) \(110\)C) \(120\)D) \(130\)E) \(140\)
3.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABD}\right)=2\cdot m\left(\widehat{CBD}\right)\)
\(m\left(\widehat{BDC}\right)=50^\circ\)
\(\Rightarrow m\left(\widehat{BCD}\right)=?\)
A) \(30\)B) \(50\)C) \(75\)D) \(105\)E) \(115\)
4.
\(d_1\parallel d_2\parallel d_3\)
\(m\left(\widehat{ABD}\right)=m\left(\widehat{DBC}\right)\)
\(m\left(\widehat{BDE}\right)=100^\circ\)
\(\Rightarrow m\left(\widehat{BCF}\right)=\alpha=?\)
A) \(10\)B) \(20\)C) \(30\)D) \(40\)E) \(50\)
5.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=140^\circ\)
\(m\left(\widehat{CDE}\right)=80^\circ\)
\(\Rightarrow m\left(\widehat{BCD}\right)=\alpha=?\)
A) \(30\)B) \(40\)C) \(50\)D) \(60\)E) \(70\)
6.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=100^\circ\)
\(m\left(\widehat{BCD}\right)=70^\circ\)
\(\Rightarrow m\left(\widehat{CDE}\right)=\alpha=?\)
A) \(150\)B) \(120\)C) \(110\)D) \(100\)E) \(90\)
7.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=100^\circ\)
\(m\left(\widehat{CDE}\right)=145^\circ\)
\(\Rightarrow m\left(\widehat{BCD}\right)=\alpha=?\)
A) \(155\)B) \(145\)C) \(135\)D) \(125\)E) \(115\)
8.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=100^\circ\)
\(m\left(\widehat{BCD}\right)=40^\circ\)
\(\Rightarrow m\left(\widehat{EDC}\right)=\alpha=?\)
A) \(40\)B) \(70\)C) \(100\)D) \(130\)E) \(140\)