c+CalcLantern

Right triangle

Find hypotenuse, area and acute angles from both legs.

How this works

Uses Pythagoras and inverse tangent; inputs are the perpendicular legs.

Example

Using the example inputs, hypotenuse is 5.

A (units)
3
B (units)
4
Hypotenuse
5

Scope and assumptions

Uses your inputs only; results are rounded for display.

OpenStax mathematics

Related calculators

Triangle from three sides

Triangle from two sides & angle

Percentage

Quadratic graph

Scientific calculator

BUILT FOR CLARITY

Useful tools. Honest answers.

An original collection of calculators for everyday estimates and learning.

Calculations run in your browser. This site does not send your inputs to a server or serve advertising. Optional analytics runs only after you allow it. Results are estimates within each tool’s stated scope, not professional advice.

Financial, health and building-related tools have specific limitations. Check important decisions with a qualified professional. No live currency rates, tax tables or current price feeds are connected.