Geometry and Trigonometry practice question

Answer: 12/13

sin B = cos A, and cos A = √(1 − 25/169) = 12/13.

Common wrong answers

If you answered 5/13

5/13 is sin A, not sin B.

If you answered 8/13

8/13 subtracts 5 from 13.

If you answered 13/12

13/12 inverts the ratio.

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