The square root of 80 calculated to 10 decimal places.
| Number | Square Root | Perfect Square? |
|---|---|---|
| 75 | 8.6602540378 | No |
| 76 | 8.7177978871 | No |
| 77 | 8.7749643874 | No |
| 78 | 8.8317608663 | No |
| 79 | 8.8881944173 | No |
| 80 | 8.9442719100 | No |
| 81 | 9 | Yes |
| 82 | 9.0553851381 | No |
| 83 | 9.1104335791 | No |
| 84 | 9.1651513899 | No |
| 85 | 9.2195444573 | No |
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