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 $s_2$).
Water and Warm Liquids. Water and warm liquids can soften stool. Liquids can help ease pressure in your intestines caused by hard, dry stools. In addition, warm liquids like coffee, hot lemon water and tea are considered natural laxatives that push waste and toxins through your intestines.
However, other results show soluble fiber like psyllium can make symptoms worse for some people. Besides keeping your bowel movements regular and managing a chronic condition, psyllium has the ability to soften your stool. This can come in handy with short-term ailments, such as constipation. Used in this way, it can prevent complications of constipation, such as hemorrhoids and anal fissures.