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18-09-2020
Mathematics

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40 points: how do u calculate this and what is sin, cos and what is the formula

40 points how do u calculate this and what is sin cos and what is the formula class=

Respuesta :

18-09-2020

Answer:

B.

Step-by-step explanation:

sin∅ = opposite side over hypotenuse

cos∅ = adjacent side over hypotenuse

To find x, there are multiple ways:

tan72° = 6/x

x = 6/tan72°

cos72° = x/15

15cos72° = x

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