How do u convert relative angle to absolute angles?

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Homework Help Overview

The discussion revolves around converting relative angles to absolute angles within a geometric context, specifically focusing on the relationship between angles theta 2 and theta 3 as depicted in a figure.

Discussion Character

  • Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants explore the relationship between the angles, with some suggesting a formula for conversion while others express uncertainty about the adequacy of the provided information.

Discussion Status

There are multiple interpretations of the angle relationships being discussed. Some participants propose formulas for calculating theta 2 based on theta 3 and other angles, while others question the completeness of the information available for a definitive solution.

Contextual Notes

Participants note assumptions regarding the geometry, such as the orientation of lines in the figure, which may impact the angle relationships being analyzed.

Luongo
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ie: in the figure theta 3 i got i want theta 2 what formula would i use
 

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Luongo said:
ie: in the figure theta 3 i got i want theta 2 what formula would i use


help please
 
I think it's th2=th1+th3-180
 
There isn't enough information to tell.
 
two_part_arm.gif


It's basic geometry.
Assuming the line I've drawn is parallel to the x axis

th2 = th3 -th
and
th = 180 - th1
Therefore
th2 = th1 + th3 - 180
 

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