Find the angle, in radians, in the figure below if 
and 
. 
Definitions:
Formula
A mathematical relationship or rule expressed in symbols, typically used to solve problems or to define a process.
Truth Table
A mathematical table used in logic to determine the truth values of a logical expression based on the truth values of its inputs.
Argument
A series of statements or reasons made to persuade others that an action or idea is right or wrong.
Imply
To suggest or express something indirectly, without stating it explicitly.
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