kimilew
17.04.2020 •
Mathematics
In ΔABC, the measure of ∠C=90°, CB = 35, AC = 12, and BA = 37. What ratio represents the cosine of ∠A?
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Ответ:
Cosine is adjacent over hypotenuse.
C is the right angle so AB is the hypotenuse.
A is the angle we're interested in, so AC is the adjacent.
cos A = AC/AB = 12/37
12/37
Ответ: