TEST 7
1.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=160^\circ\)
\(m\left(\widehat{EDB}\right)=120^\circ\)
\(\Rightarrow m\left(\widehat{DBC}\right)=\alpha=?\)
A) \(100\)B) \(110\)C) \(120\)D) \(140\)E) \(150\)
2.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=150^\circ\)
\(m\left(\widehat{CDE}\right)=40^\circ\)
\(\Rightarrow m\left(\widehat{BCD}\right)=\alpha=?\)
A) \(10\)B) \(20\)C) \(30\)D) \(40\)E) \(50\)
3.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=x+75^\circ\)
\(m\left(\widehat{BCD}\right)=2x\)
\(m\left(\widehat{CDE}\right)=3x+35^\circ\)
\(\Rightarrow x=?\)
A) \(20\)B) \(25\)C) \(30\)D) \(35\)E) \(40\)
4.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABE}\right)=42^\circ\)
\(m\left(\widehat{EBC}\right)=58^\circ\)
\(m\left(\widehat{BCD}\right)=20^\circ\)
\(\Rightarrow m\left(\widehat{FDC}\right)=\alpha=?\)
A) \(130\)B) \(124\)C) \(120\)D) \(116\)E) \(110\)
5.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABE}\right)=m\left(\widehat{CBE}\right)\)
\(m\left(\widehat{CDF}\right)=20^\circ\)
\(m\left(\widehat{BEF}\right)=140^\circ\)
\(\Rightarrow m\left(\widehat{BCD}\right)=\alpha=?\)
A) \(70\)B) \(80\)C) \(85\)D) \(90\)E) \(100\)
6.
\([BC]\parallel[FE]\)
\([BA]\parallel[CD]\)
\(m\left(\widehat{ABC}\right)=60^\circ\)
\(m\left(\widehat{CDF}\right)=20^\circ\)
\(\Rightarrow m\left(\widehat{DFE}\right)=\alpha=?\)
A) \(40\)B) \(50\)C) \(80\)D) \(100\)E) \(120\)
7.
\(d_1\parallel d_2\)
\([DE]\perp[EF]\)
\(m\left(\widehat{ABC}\right)=30^\circ\)
\(m\left(\widehat{BCD}\right)=80^\circ\)
\(\Rightarrow m\left(\widehat{CDE}\right)=\alpha=?\)
A) \(30\)B) \(40\)C) \(50\)D) \(60\)E) \(70\)
8.
\(d_1\parallel d_2\)
\(m\left(\widehat{ABC}\right)=30^\circ\)
\(m\left(\widehat{DEF}\right)=140^\circ\)
\(\Rightarrow m\left(\widehat{BCD}\right)=m\left(\widehat{CDE}\right)=\alpha=?\)
A) \(130\)B) \(125\)C) \(120\)D) \(115\)E) \(110\)