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.
Softening Stool through Diet. 1  1. Drink more water. Dehydration can cause your body to extract as much water as it can as foods move through your digestive tract, producing dry, hard stool. 2  2. Eat foods that have slight laxative effects and are high in fiber. Some of these, like prunes, have sorbitol. 3  3. Eat more fiber.