Input mode
Coordinates (any shape)
Triangle (3 sides)
Regular polygon
Vertices
— one point per line as
x, y
, in order around the shape (3 or more)
0, 0 4, 0 4, 2 2, 2 2, 4 0, 4
Side a
Side b
Side c
Number of sides (n)
Side length
Area
—
Perimeter
—
Vertices
—
—
Step by step
Polygon Area Calculator · Made with LK Forge ↗
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