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.
Exercise at least 30 minutes per day Photo Credit YanLev/iStock/Getty Images. You can prevent hard stools by using the bathroom as soon as you feel the urge to go. Drink plenty of water every day to help soften stool. Exercise for at least 30 minutes per day to help make your bowels more active.