 # Isosceles Triangle Calculator

Area of Isosceles Triangle:
Enter one of the sides :
Enter the base value :

Height of the triangle =
Area of the triangle =
Perimeter =

Isosceles Triangle Calculator is a free online tool that displays the area and the perimeter of the isosceles triangle. BYJU’S online isosceles triangle calculator tool makes the calculation faster and it displays the area and perimeter of the isosceles triangle in a fraction of seconds.

## How to Use the Isosceles Triangle Calculator?

The procedure to use the isosceles triangle calculator is as follows:

Step 1: Enter the base value and one of the side value in the input field

Step 2: Now click the button “Solve” to get the area and perimeter

Step 3: Finally, the area and the perimeter of the isosceles triangle will be displayed in the output field

### What is Meant by Isosceles Triangle?

In mathematics, a triangle is a polygon with three sides. Based on the sides and the angles, a triangle can be classified into different types. Based on the sides, a triangle can be classified as follows:

• Scalene Triangle – Triangle with three different side lengths
• Isosceles Triangle – Two sides of a triangle are of equal length
• Equilateral Triangle – All the sides of a triangle are of equal length

The area and the perimeter of the isosceles triangle are given as

Area = (½) × base × height square units

Perimeter =  2a+b units