Geometry

Question Analysis

The main focus of this question is to determine the appropriate trigonometric ratio among csc, sec, and cot to find the unknown side in a right - triangle. It tests the understanding of the definitions of these trigonometric functions and the correct identification of the sides relative to the given angle.

Key Concept Explanation

Cosecant (csc):

Secant (sec):

Cotangent (cot):

Step - by - Step Solution

1. Identify the sides relative to the angle:

The side with length 9 is the opposite side to the angle, and

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