This trapezoid median reference table shows the median (midsegment) for a range of parallel side a values, assuming a parallel side b of 6. Every figure is computed with the same engine that powers our Trapezoid Median Calculator, so the numbers are exact.
| Parallel side a | Median (midsegment) |
|---|---|
| 2.5 | 4.2500 |
| 5 | 5.5000 |
| 7.5 | 6.7500 |
| 10 | 8.0000 |
| 15 | 10.5000 |
| 20 | 13.0000 |
| 30 | 18.0000 |
| 50 | 28.0000 |
| 70 | 38.0000 |
| 100 | 53.0000 |
How to use this table
Find the row closest to your parallel side a and read across to the median (midsegment). For a value between two rows, the real figure sits between them — or enter your exact numbers in the Trapezoid Median Calculator for a precise answer.
Need a value that is not in the table? — the Trapezoid Median Calculator does it instantly, for free, with the formula and a worked example built in.
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