Surface Area of a Rectangular Pyramid. The surface area of a regular square pyramid is the sum of area of the base and area of four isosceles triangles. But for rectangular pyramid, with rectangular base, we can not use the standard formula of surface area because there is more than one slant height ($s_1$ and $s_2$).
Flaxseeds. Another food to help relieve constipation is flaxseeds. Flaxseeds are rich in fiber and essential fatty acids, healthy fats that soften stool and ease constipation. The best way to use flaxseeds as a stool softener is to add approximately 2 tablespoons of flaxseed to your cereal or meals.
While others soften the stool, add bulk and improve the function of colon muscles that promotes healthy and regular bowel movements. So if you're wanting a product that strictly works as a laxative you will make a different choice in herbs than someone who is wanting to add bulk or kill parasites.