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.
Beans. Foods that soften stool include beans. Legumes, like adzuki beans and soybeans, are rich in calcium, zinc, iron, protein and fiber, nutrients that soften stool, regulate normal bowel movements, aid in digestion, repair injuries and strengthen your immune system.ther foods that soften stool include bran cereals (Shredded Wheat, Raisin Bran and Oat Bran warm cereal). Bran cereals are rich in fiber, which aid in digestion and support regular bowel movements.