In triangle ABC, angle A is straight, AC = 12 cm, cos angle ACB = 0.6. Find the sun.
| January 9, 2021 | education
Cosine is the ratio of the adjacent hypotenuse. If cosACB = 0.6, therefore cosACB = 6/10, when in this problem the adjacent leg is the leg AC = 12 known to us, it follows that the fraction 6/10 is reduced by 2, therefore the hypotenuse BC is 10 * 2 = 20
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