afar0800 afar0800

21-04-2021
Mathematics

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pls help i cant fugure it out and question is on picture

pls help i cant fugure it out and question is on picture class=

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altavistard altavistard

21-04-2021

Answer:

Step-by-step explanation:

According to the figure, cos Ф = 16/20 = 4/5 = 0.80.

Using the inverse cosine function on a calculator, we get

Ф = 0.644 radians or 36.87 degrees or arccos 4/5

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