This pythagorean theorem reference table shows the hypotenuse (c) for a range of leg a values, assuming a leg b of 4. Every figure is computed with the same engine that powers our Pythagorean Theorem Calculator, so the numbers are exact.
| Leg a | Hypotenuse (c) | Area of triangle | Perimeter |
|---|---|---|---|
| 0.75 | 4.069705 | 1.50 | 8.8197 |
| 1.5 | 4.272002 | 3.00 | 9.7720 |
| 2.3 | 4.614109 | 4.60 | 10.9141 |
| 3 | 5.000000 | 6.00 | 12.0000 |
| 4.5 | 6.020797 | 9.00 | 14.5208 |
| 6 | 7.211103 | 12.00 | 17.2111 |
| 9 | 9.848858 | 18.00 | 22.8489 |
| 15 | 15.524175 | 30.00 | 34.5242 |
| 21 | 21.377558 | 42.00 | 46.3776 |
| 30 | 30.265492 | 60.00 | 64.2655 |
How to use this table
Find the row closest to your leg a and read across to the hypotenuse (c). For a value between two rows, the real figure sits between them — or enter your exact numbers in the Pythagorean Theorem Calculator for a precise answer.
Need a value that is not in the table? — the Pythagorean Theorem Calculator does it instantly, for free, with the formula and a worked example built in.
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