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.
Soluble fibre. Soluble fibre can be digested by your body. It may help to reduce the amount of cholesterol in your blood. If you have constipation, gradually increasing sources of soluble fibre â such as fruit and vegetables, oats and golden linseeds â can help soften your stools and make them easier to pass. Foods that contain soluble fibre include: 1  oats, barley and rye.