A ladder is placed against tower. If the ladder makes an angle of 30∘ with the ground and reaches upto a height of 15 m of the tower; find length of the ladder.
30
60
40
50
A
50
B
30
C
40
D
60
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Solution
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Angle made by ladder with ground = 30∘ Ladder reaches the wall = 15 m Let length of ladder = x Now, sinx=LengthoftowerLengthofladder sin30=15x x=30 m
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A ladder is placed against tower. If the ladder makes an angle of 30∘ with the ground and reaches upto a height of 15 m of the tower; find length of the ladder.
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