In the figure below, points C, D, and F are collinear, ACF and CDE are equilateral triangles, and b + d = 90 degrees. Use a two column proof to prove that ABC is a right triangle.
In the figure below, points C, D, and F are collinear, ACF and CDE are equilateral triangles, and b + d = 90 degrees. Use a two column proof to prove that ABC is a right triangle.
In the figure below, points C, D, and F are collinear, ACF and CDE are equilateral triangles, and b + d = 90 degrees. Use a two column proof to prove that ABC is a right triangle.
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