Important Maths Formulas | Area FormulasArea of a Circle Formula = π r2wherer – radius of a circleArea of a Triangle Formula A=12bhwhereb – base of a triangle.h – height of a triangle.Area of Equilateral Triangle Formula = 3√4s2wheres is the length of any side of the triangle.Area of Isosceles Triangle Formula = 12bhwhere:a be the measure...