An isosceles triangle is a triangle with two congruent sides and congruent base angles. congruent means equal. No matter which direction the triangle's apex, or peak, points, it's an isosceles triangle if two of its sides are congruent.
Uses of talc: Talc is used in a wide variety of products that we see every day. It is an important ingredient in rubber, a filler and whitener in paint, a filler and brightening agent in high-quality papers, and a primary ingredient in many types of cosmetics.
Medical Definition of TALC. : a very soft mineral Mg3Si4O10(OH)2 that is a basic silicate of magnesium, has a soapy feel, and is used especially in making talcum powder. a very soft mineral that is a basic silicate of magnesium, has a soapy feel, and is used especially in making talcum powder. 2. : talcum powder. â talcÂ·ose \Ëtal-ËkÅs\ adjective.