Respuesta :

kaelanharrington

Answer:

A,E

Step-by-step explanation:

sin(20°) = LN/8  cos(70°) = LN/8

(First and last choice)

fichoh

Using the trigonometric relation, the appropriate ratios to obtain the length LN are :

  • Sin(20) = LN/8
  • Cos(70) = LN/8

Recall from trigonometry :

  • SOHCAHTOA

Sinθ = opposite / hypotenus

  • Opposite = LN
  • Hypotenus = 8
  • θ = 20°

Sin(20) = LN/8

Cosθ = Adjacent / hypotenus

  • Adjacent = LN
  • Hypotenus = 8
  • θ = 70°

Cos(70) = LN/8

Therefore, the correct trigonometric ratios which could be used to obtain the length LN are the options A and E

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