Use the figure below. (a) Explain why are similar triangles. (b) What does similarity imply about the ratios (c) Does the value of sin depend on which triangle from part (a) is used to calculate it? Would the value of sin change if it were found using a different right triangle that was similar to the three given triangles? (d) Do your conclusions from part (c) apply to the other five trigonometric functions? Explain.

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