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The angle of elevation of a ladder leaning against a wall is 60° and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is : | |
A. | 2.3 m [Wrong Answer] |
B. | 4.6 m [Wrong Answer] |
C. | 7.8 m [Wrong Answer] |
D. | 9.2 m [Correct Answer] |