A trapezoid does not have an axis of symmetry, so the lateral area is dependent on where the vertex is located. A "formula" will be different from one case to another, depending how the trapezoid and the vertex are defined.
In general, you'd have to calculate the area of each face separately.
The area of a face is equal to the slant height multiplied by the base and divided by two.
Repeat the same process for each of the sides of the trapezoid, and add the four areas together.
If you have difficulties calculating the lateral area of a particular case, you could post for further help.
WHAT IS THE LATERAL AREA FORMULA FOR A
TRAPEZOID PRISM
1 answer