Chapter 6: Lines and Angles

Questions

1. Two supplementary angles differ by $34^\circ$.
2. Angles $(x+10)^\circ, (2x-30)^\circ, (3x+20)^\circ$ of triangle.
3. Alt interior of $65^\circ$ on parallel lines.
4. Alternate interior angles definition.
5. $(3x+5)^\circ$ and $(2x-25)^\circ$ are vertically opposite. Find $x$.
6. Co-interior angles on parallel lines are ___.
7. Angles of a triangle in ratio $2:3:4$.
8. Complement of $47^\circ$.
9. Exterior angle $= 110^\circ$; one remote interior $= 50^\circ$. Find the other.
10. Two parallel lines cut by a transversal: sum of alt. interior angles?

Extra Practice (Optional)

• Angles of triangle in ratio $3:4:5$.
• Two supplementary angles: one is double the other.
• Angle complementary to $32^\circ$.
• If two lines are parallel and cut by transversal, prove alt. interior angles equal.
• Sum of interior angles of hexagon.