Geometry

Triangle Height Calculator

Height to side a from area, or from two sides and the included angle (SAS).

Free to use — no sign-up or login.

Height to a

This free Triangle Height Calculator covers Height to side a from area, or from two sides and the included angle (SAS).

h_a = 2A/a. If area is 0, A = (1/2)bc sin α. Related geometry tools sit beside How it works, with no account required.

Using the Triangle Height Calculator

Height to side a from area, or from two sides and the included angle (SAS). Typical inputs are Base a, Area (0 = use SAS), Side b (SAS) and Side c (SAS). How it works beside the form states the identity the Triangle Height Calculator applies.

FAQ

How do I use the Triangle Height Calculator?

Open the Triangle Height Calculator, fill Base a, Area (0 = use SAS), Side b (SAS) and Side c (SAS), and read the result. h_a = 2A/a. If area is 0, A = (1/2)bc sin α.

What formula does the Triangle Height Calculator use?

The Triangle Height Calculator uses the identity in How it works. In words: h_a = 2A/a. If area is 0, A = (1/2)bc sin α.