Perimeter of a Right Triangle Calculator

Summary

Enter the two legs of a right triangle to instantly calculate the hypotenuse and perimeter.

How it works

1. Enter the length of leg a (one side adjacent to the right angle).
2. Enter the length of leg b (the other side adjacent to the right angle).
3. The calculator applies the Pythagorean theorem: c = sqrt(a² + b²).
4. It sums all three sides: perimeter = a + b + c.
5. Results are displayed instantly with the hypotenuse and perimeter.

Use cases

• Calculate fencing needed for a right-angled corner plot.
• Find the total edge length for woodworking or framing projects.
• Check geometry homework involving right triangles.
• Determine the border length of a right-triangular tile or panel.
• Compute the perimeter for landscape design on right-angle slopes.
• Verify construction measurements that involve a right-angle corner.

Frequently Asked Questions