
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 larger 14x8 square grid, determine how many of the given four triangles are isosceles:
- Triangle 1: Vertices at (0,7), (3,7), (1,5)
- Triangle 2: Vertices at (4,5), (4,7), (6,5)
- Triangle 3: Vertices at (0,2), (3,3), (7,2)
- Triangle 4: Vertices at (11,5), (10,7), (12,5)
A) 1
B) 2
C) 3
D) 4
E) None of the above

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