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.
talc can be used as a lubricant, ground and used as a powder, it is also used in medicine in various forms and in scientific experimentation and helpful to use. In deodorants and in talcum powders. It mainly absorbs moisture thus preventing rashes (diaper or friction rashes). talc can be used as a lubricant, ground and used as a powder, it is also used in medicine in various forms and in scientific experimentation and helpful to use. In deodorants and in talcum powders.
For extra credit to impress your teacher: the mineral talc is also used as a filler in colored pencils and crayons! Serpentine(blues/blue-greens), hematite(red, gray, and brown), limonite(red and yellow ocher) mica(silver and gold), tremolite(greens) are some other minerals used as pigments in colored pencils.