There is not enough information to be able to find the last side.
Assuming a and b are the parallel sides of the trapezoid then with great difficulty - you need to know how far apart the parallel sides are.
If you mean volume of a trapezoidal prism then it is: 0.5*(sum of parallel sides)*height*length
the volume of a trapezoidal prism is equal to the height times the base area of the trapezoid. First you find the area of trapezoid h(a+b)/2 h is the height of the trapezoid, not the height of the prism a is the length of the top b is the length of the bottom Then you find the volume of the trapezoidal prism with this formula H*h(a+b)/2 H is the height of the prism. Multiply H by the area of the trapezoid that you found in step one.
To find the volume of a rectangular prism, multiply the base, width, and height. If the prism is irregularly shaped, multiply the base and the height.
Surface Area = 2 × Base Area + Base Perimeter × Length
I think it is area of the trapezoid x height. Sorry if i didnt help. fOR ANY PRISM IT IS THE AREA OF THE BASE (IN THIS CASE A TRAPEZOID) X VERTICAL HEIGHT ( DISTANCE BETWEEN THE TWO BASES)
If you mean by a square prism that has equal sides then just cube root the volume
Add up the sides.
432 cubic inches
To find the surface area of an equilateral triangular prism you take the area of the rectangular sides and the triangular bases and add them up and your done.
The answer will depend on the shape of the prism.The answer will depend on the shape of the prism.The answer will depend on the shape of the prism.The answer will depend on the shape of the prism.
Assuming you mean a regular prism, 3 rectangular sides and 2 triangular sides, you need only know how to calculate the area for rectangles and triangles and then sum the values for the 5 individual faces.