Answer:
36
Step-by-step explanation:
You list all factors of 180 and then find a number that is a perfect square
1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, and 180.
As you can see, 36 is the greatest perfect square
The square root = 6
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-Chetan K
