3 years ago

Help do I need to measure what's on the paper or measure a real object ???

Mathematics

1 answer:

MArishka [77]3 years ago

8 0

I think its on the paper but not sure

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prohojiy [21]

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Dark: 3/5

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Sophie [7]

#1
$sin(51^o)= \frac{y}{12} \ \ \to \ \ y=12*sin(51^o)=12* 0.7771 \approx 9.33$

#2
$\theta=arccos( \frac{5^2+13^2-12^2}{2*5*13}) = arccos( \frac{25+169-144}{130})=arccos( \frac{50 }{130})= \\ \\ arccos(0.3846) \approx67.4^o$

#3
$tan(13^o)= \frac{x}{24} \ \ \to \ \ x=24*tan(13^o)=24* 0.2309 \approx 5.54$

#4
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