# Isosceles Triangle Calculator

A triangle has three sides and three angles equal 180o. Beyond that triangles are a lot. The isosceles triangle that has at least two identical sides and angles. These identical sides are considered legs of the triangle. The third side is considered the base.

Isosceles triangle that represents a major class, including right angle triangle and obtuse isosceles triangle with equilateral triangle and acute isosceles triangle. The height, area and perimeter of the isosceles triangle is measured by using the following formulas.

**Area = $\frac{1}{2} \times Base \times Height$**

Perimeter of a triangle = Sum of three sides

Height or altitude = $\sqrt{a^{2}-\frac{b^{2}}{4}}$

Perimeter of a triangle = Sum of three sides

Height or altitude = $\sqrt{a^{2}-\frac{b^{2}}{4}}$