Expert Guide

Land & Survey
Irregular Plot Area (4 Sides + Diagonal)
Quality Inspector

Find area of non-rectangular 4-sided plots.
📐 Formula & Method
Plot is split into two triangles (ABC and ADC). Heron's formula is applied to both and added.
Total Area = Area(T1) + Area(T2)
📋 Worked Example
Split into triangles with sides (10,15,18) and (12,14,18). Calculate each area using Heron's and sum.
❓ Frequently Asked Questions
Four sides alone do not define a specific area for an irregular quadrilateral; the internal angles (or a diagonal) are required to fix the shape.
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