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 $s_2$).
Step 1. Drink plenty of water with your meals and between meals. Water helps soften your stool. If you do not drink enough fluids, your body will pull water from the colon, hardening the stools. Also avoid caffeinated beverages, which cause your body to lose water.
Some medications and conditions can make constipation more likely. Stool softeners such as docusate are often the first method used for preventing and treating this type of constipation. Docusate is often used when straining to have a bowel movement should be avoided (e.g., after a heart attack or surgery). Docusate is a stool softener. It works by increasing the amount of water the stool absorbs in the gut, making the stool softer and easier to pass.