Top and Bottom both faces have all sides are different lengths and height is constant.

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## keralitecivilengineer

Here a prism with triangular areas are given. Yours is quadrilateral areas. Hence Sb1 and Sb2 will be area of quadrilaterals

Now to find area of quadrilaterals, you need more measurement – either one diagonal or two angles.

If you know diagonal, then use the below link to find the area using diagonal

https://www.vcalc.com/wiki/vCalc/Quadrilateral+Area+(with+diagonal)

If you know the angles, then use the below link to find the area using diagonal

https://www.vcalc.com/wiki/vCalc/Quadrilateral+-+area

## Gopal Mishra

Your question is not clear, it will be better if you provide more details and attach an image of that.

## talha