
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
In a circle with a radius of 10 units, a chord bisects a radius and is perpendicular to it. What is the length of this chord?
A) $10$
B) $15$
C) $10\sqrt{3}$
D) $20$

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