. Isosceles triangle formula sides
Area of an Isosceles Triangle: It is the distance occupied by the triangle. Here we have 3 formulas to find the area of a triangle, primarily based totally on the given parameters.
Area = × Base × Height
(where, a is the equal side, and b is the base of the triangle).
Area = × abSinα
(where, a and b are the lengths of two sides and α is the angle between these sides).
Perimeter of an Isosceles Triangle: In an isosceles triangle, there are 3 sides: equal sides and one base.
P = 2a + b
Altitude of an Isosceles Triangle: In an triangle, its height is the perpendicular distance from its vertex to its base.