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.
The talc in talcum powder comes from the crushing, drying and milling of mined talc rocks and contains minerals such as magnesium and silicon. Such products used to contain asbestos (which causes mesotheliomas â rare cancers of the tissues around the lungs).