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Q12989
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What is the height of the wall where the ladder touches the wall if the ladder is 2.5 m long makes an angle of 60 Degree with the ground?
Q12990
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What is the height of the building if a ladder at 45 Degree touches the building placed 16 m from the base of the building?
Q12991
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What is the angle of elevation of the top of a light house of 15 m height seen at a point 15 m away from the base?