Trapezoid Median Calculator (m = (a+b)/2)
This calculator computes the trapezoid median (midline): exact formula m = (a+b)/2, worked example a = 10, b = 6, h = 4 cm → m = 8 cm, A = 32 cm².
- Free, instant, any units.
Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.
How the trapezoid median (midline) Calculator Works
The calculator applies the exact formula m = (a + b)/2, A = m·h. Worked example: a = 10, b = 6, h = 4 cm → m = 8 cm, A = 32 cm². Keep every input in one unit system and the result follows in length units (m, ft, cm); full precision is kept until the final rounding. Angles in radians pair with s = rθ; convert degrees with × π/180.
- 1
Enter the measurements
Type the values required by the formula for trapezoid median (midline).
- 2
Check the units
One unit system throughout — cm, m, ft or in.
- 3
Read the result
The calculator substitutes, evaluates and rounds only at the end.
Use Cases
Fabrication and layout work
Wire, trim and route length planning
Design and homework verification
Tips
- 1
Keep angles in radians for s = rθ formulas
- 2
1 rad = 57.2958°; degrees × π/180 = radians
- 3
Unroll curved paths into straight segments to sanity-check
Common Mistakes
Degrees entered where radians are required
Using the chord length as the arc length
Rounding π too early in chain calculations
FAQs
Related tools
Pick another tool to continue your calculation.
Tank Fill Calculator (Cylinder)
Calculate cylinder volume and surface area.
Cone Volume Calculator (liters & gallons)
Calculate cone volume, lateral area, and slant height.
Pyramid Volume Calculator (V = ⅓lwh)
Calculate pyramid volume, base area, and slant height.
Barrel Volume Calculator (V ≈ πh(2D²+d²)/12)
Calculate barrel volume.
Truncated Cone Calculator (V = ⅓πh(R²+Rr+r²))
Calculate truncated cone frustum volume.
Ellipsoid Volume Calculator (V = ⁴⁄₃πabc)
Calculate 3D ellipsoid volume.