a ladder is placed against a wall such that it just reaches the top of the wall the length of the ladder is 5m and the ladder is inclined at angle is 30degree with the ground find the height of the wall
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Answer:
Height of wall= 2.5 m
Step-by-step explanation:
Ladder length= 5m
Angle= 30 degrees
By simple trigonometry
Sin 30= Opp/ Hypo
Sin 30= Opp/5
Opp = 5× sin 30
Opp= 2.5 m
Opp= Height of wall
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