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.
Photo Credit gmast3r/iStock/Getty Images. Constipation can cause the stool in the colon and rectum to become dry and hard, making it uncomfortable to have a bowel movement. Stool softeners can be used to soften the stool and make it easier to pass out of the digestive tract. However, these drugs have several side effects that can cause discomfort and may make it necessary to find alternate treatment options.