Hence the traingles ABD and ADC are congruent. Therefore,
Hence all the sides of the traingle ABC is equal to x+y.
If I interpreted correctly, the side length is x+y if and only if x = y, and the triangles you said are congruent are only similar in general. I have not solved this problem.
If I interpreted correctly, the side length is x+y if and only if x = y, and the triangles you said are congruent are only similar in general. I have not solved this problem.
Dear undefined,
Thanks. That is a mistake I have'nt seen. I cannot take BD=CD since it is only valid if x=y. Thanks again for pointing that out. I have edited my previous post with a new approach.
Last edited by Sudharaka; June 20th 2010 at 07:29 AM.
Excellent , the key is making two equations with unknowns , the side and the included angle but we have to eliminate the side we are looking for first , that's a trick .