A triangle calculator is a simple online tool that can be used to calculate the perimeter of a triangle. All you need to do is enter the lengths of the three sides of the triangle into the calculator and it will automatically calculate the perimeter for you.

The perimeter of a triangle is the sum of the lengths of its three sides. So, if you know the lengths of the three sides of a triangle, you can easily calculate its perimeter using a triangle calculator.

To use a triangle calculator, simply enter the lengths of the three sides of the triangle into the relevant fields and click on the ‘Calculate’ button. The calculator will then automatically calculate the perimeter of the triangle for you.

It is important to note that the lengths of the three sides of a triangle must be entered in ascending order, from the shortest side to the longest side.

If you enter the lengths of the sides in the wrong order, the calculator will give you an incorrect result.

Once you have used a triangle calculator to calculate the perimeter of a triangle, you can then use this information to calculate the area of the triangle.

To calculate the area of a triangle, you need to multiply the length of the base of the triangle by the height of the triangle.

The base of a triangle is the length of the side that is opposite to the triangle’s longest side.

The height of a triangle is the length of the line that is perpendicular to the base of the triangle and passes through the midpoint of the triangle’s longest side.

Once you have calculated the perimeter and the area of a triangle, you can use these values to calculate the triangle’s other properties, such as its angles and its incircle and circumcircle radiuses.