Opt for protein-rich foods, such as lean meat, eggs, dairy, beans, lentils and seafood low in mercury. Choose a variety of whole grains as well as fruits and vegetables. Wash your fruits and vegetables to reduce exposure to pesticide residue.
Three-sided (adj) having three sides, especially three plane sides; as, a three-sided stem, leaf, petiole, peduncle, scape, or pericarp
Now what about the shape over here that has three sides one two three you could also say it has three corners one two three if you have three sides we call that a triangle Tri angle whenever you see this Tri over hear that's a good sign that you're dealing with the number three.