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Home > GC > Chapter 12 > Lesson 12.2.3 > Problem 12-76

12-76.

If is equilateral, and if and , find all possible coordinates of vertex . Justify your answer. 12-85 HW eTool (Desmos).

There are two possible locations for vertex .

A pentagon with the vertices labeled B, C, M, A, and N starting at the lower left vertex and going counter clockwise. B, C, is 4. Two diagonals are drawn: B, A, and C, A. The triangle A, B, C, is shaded.

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