Geometry Side-Angle Relationship Inequality - Transversal

Use the figure to determine which of the following angles has the greatest measure:  $$\angle\ 4,\ \angle\ 8,\ \angle9$$  

Use the Exterior Angle Inequality Theorem to list all angles that satisfy the stated condition: measures are less than  $$\angle1$$  
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Use the Exterior Angle Inequality Theorem to list all angles that satisfy the stated condition: measures are less than  $$\angle3$$  
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Which of the following segments represents an altitude?

The figure shows the position of three trees on one part of a disc golf course. At which tree position is the angle between the trees the greatest?

Find the m∠1

Find the value of x.

Find D

Same Side Interior angles...

Which angle is a vertical angle to with \angle7 ?