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.
Talc powder is used as a moisture absorber and is ideal for people with oily skin. It helps to absorb moisture and soothe irritation caused by diapers. It can also be used for adults to help prevent rashes and chafing. If you have sensitive skin, or you wish to use the talc on a baby, opt for baby powder.