
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 parabolic arch has a height of 20 feet at the center and a span of 50 feet. Find the height of the arch 10 feet from the center.
A) 16.2 feet
B) 16.8 feet
C) 17.5 feet
D) 18.0 feet

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