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A ladder is leaning against a building, forming a 70° angle with the ground. The base of the ladder is 8.2 ft from the base of the building. What is the length of the ladder?
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OLIVER69:
The length of the ladder is 23.97 ft cos70 degrees = 8.2/c Simplify the equation to solve for c c = 8.2/cos70 degrees ≈ 23.97 ft
UsernameTaken:
Thank you, but how do you know it's cosine?
UsernameTaken:
Thank you so much, the visual is very helpful
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