8 lines
171 B
Go
8 lines
171 B
Go
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package rect
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import "math"
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func SizeTriangle(p1, p2, p3 Point) float64 {
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return math.Abs((p1.X*p2.Y + p2.X*p3.Y + p3.X*p1.Y - p1.Y*p2.X - p2.Y*p3.X - p3.Y*p1.X) / 2)
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}
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