kyleebruh kyleebruh

24-05-2022
Mathematics

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Аноним Аноним

24-05-2022

Answer:

5/13

Step-by-step explanation:

Finding the missing side :

opposite side² + adjacent side² = hypotenuse² (Pythagorean)
(12)² + adjacent side² = (13)²
adjacent side² = 169 - 144
adjacent side² = 25
adjacent side = √25
adjacent side = 5

Taking the cos ratio :

cosθ = adjacent side / hypotenuse
cosθ = 5/13

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