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12a I need help please

12a I need help please-example-1
User Jyore
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1 Answer

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30 votes

Answer:

Explanation:

The only way to solve this is to use trig. The supplement to theta is 180 - tan-1(5/4)

Tan-1 (5/4) = 51.34

Theta = 180 - 51.34 = 128.66

User MegaMatt
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