Checking and securing understanding of advanced angle facts

12 questions

1. Two lines are ___ if they are straight lines that are always the same (non-zero) distance apart.
2. A __________ is a line, line segment, or ray that intersects through two or more lines at distinct (different) points.
3. In which image(s) is the protractor in a correct position to measure the marked angle?
4. The size of ∠AED is 105°. Therefore the size of the acute angle ∠DEC is ___°.
5. The size of ∠AED is 105°. Therefore the size of the reflex angle ∠DEA is ___°.
6. The size of ∠AED is 105°. Therefore the size of the obtuse angle ∠CEB is ___°.
7. The angle that is corresponding with angle c is angle ___.
8. The angle that is alternate with angle c is angle ___.
9. The angle that is co-interior with angle c is angle ___.
10. The angle that is vertically opposite angle c is angle ___.
11. Angles d and e are __________.
12. Angles a and g are __________.

License: OGL