Interface RemarquableLines

interface RemarquableLines {
    bisectors: TriangleLineTriad<"A" | "B" | "C"> | null;
    externalBisectors: TriangleLineTriad<"A" | "B" | "C"> | null;
    heights: TriangleLineTriad<"A" | "B" | "C"> | null;
    medians: TriangleLineTriad<"A" | "B" | "C"> | null;
    mediators: TriangleLineTriad<"a" | "b" | "c"> | null;
}