what is height of the wall where the ladder touches the wall if the ladder is 2.5 meter long make an angle 60degree with the ground?
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In the figure, MN is the length of the ladder, which is placed against the wall AB and makes an angle of 60° with the ground. The foot of the ladder is at N, which is 2 m away from the wall. Therefore, the length of the ladder is 4 m. Hence, the correct option is D.
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