[ heer-ohz ]
/ ˈhɪər oʊz /
the formula for the area of a triangle when the sides are given: for a triangle with sides a, b, and c, the area is equal to , where s is equal to one half the perimeter of the triangle.
Origin of Hero's formula
named after Hero of Alexandria
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019