lhecker007
14.06.2021 •
Mathematics
Help plsss it’s timed i need to passss plsss
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Ответ:
65°
Step-by-step explanation:
To obtain Angle A, we use the cosine rule ;
Cos A = (b² + c² - a²) / 2bc
Cos A = (12² + 14² - 14²) / 2(12)(14)
Cos A = 144 / 336
A = Cos^-1(144/336)
A = 64.62°
A = 65°
Ответ:
so if m is slope like in y=mx+b then the slope is also m=3 for the other line