In triangle ABC, angle C = 90 degrees, cosA = 0.6, BC = 12. Find AB
September 29, 2021 | education
| AB = 12,
cos α = 0, 6.
angle C = 90 degrees.
cos α = BC / AB,
0, 6 = 12 / AB,
AB = 12: 0, 6,
AB = 20.
Answer: AB = 20.
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