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.
It is this absorption and swelling that assists the body in forming a soft, lubricated, bulkier stool. The presence of this softer, bulkier stool stimulates the bowel to contract, and pass the stool more easily, helping to relieve constipation. Benefits: Safe for long term use.