berkshockeysj
berkshockeysj berkshockeysj
  • 02-02-2021
  • Mathematics
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Someone plzzzz help me

Someone plzzzz help me class=

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lucic
lucic lucic
  • 03-02-2021

Answer:

None of these

Step-by-step explanation:

The two cases are for trigonometry special angles.

The cosine of an angle is given as the adjacent side length divided by the hypotenuse side length

Cos ∅ = A/H

1. The case of 45°,45°,90°

Cos x = 1 /√2

2. The case of 30°, 60° ,90°

Cos x = 1/2   or  √3/2

   

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