مثلث
preferred label: triangle @en
type: Concept
related: فرمول هرون

فرمول هرون
related: مثلث
related: نیم‌محیط
broader: مساحت
preferred label: heron formula @en
type: Concept

نیم‌محیط
preferred label: semi-perimeter @en
type: Concept
related: فرمول هرون

مساحت
preferred label: area @en
type: Concept
narrower: فرمول هرون