
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
A line parallel to the side  $AC$  of a triangle  $ABC$  with  $\angle C = 90$  intersects side  $AB$  at  $M$  and side  $BC$  at  $N$ , so that  $CN/BN = AC/BC = 2/1$ . The segments  $CM$  and  $AN$  meet at  $O$ . Let  $K$  be a point on the segment  $ON$  such that  $MO+OK = KN$ . The bisector of  $\angle ABC$  meets the line through  $K$  perpendicular to  $AN$  at point  $T$ .
Determine  $\angle MTB$ .
 

Present the answer in LaTex format: \boxed{Your answer}
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