The foot of a ladder is 2m away from a vertical wall. The height of the top of the ladder is ½ m less than the length of the ladder. What is the length of the ladder?
A. 42m
B. 4.25 m
C. 32 m
D. 42.5 m
সঠিক উত্তরঃ
B.
4.25 m
Explanation:
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