SOLUTION: I need to solve this question on this link please https://drive.google.com/open?id=0B2SbxAb-ajtfaWNIQ3JUb3VXV1U

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Question 1085150: I need to solve this question on this link please
https://drive.google.com/open?id=0B2SbxAb-ajtfaWNIQ3JUb3VXV1U
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The 2 slopes are 1/2 and -1/3.
The slope is the tangent of the angle with the x-axis.
Angle between = atan(1/2) + atan(1/3)
It's + atan(+1/3) because the angles are added.
= 45 degs