Discussion
If l1||l2 in the figure shown, what is the value of x?
*This question is included in Nova Math - Problem Set J: Geometry, question #7
| (A) | 30 |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 12/08/2015 18:02
I apologize but my phone isn't allowing me to view the whole solution. Can you please explain the answer?
Posted: 12/09/2015 13:29
Since l1 is parallel to l2, s and x are corresponding angles and therefore are congruent. Now, about any point there are 360 degrees. Hence, 5x + s = 360; substituting x for s gives 5x + x = 6x = 360. x = 60. Answer is C.