16.A ladder 25m long reaches a window of building 20m above the ground.
Determine the distance of the ladder from the building.
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the distance of the laader from the building is 15m
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A ladder "25 m" long
Reaches a window of a building "20 m" about the ground
The distance of foot of ladder from the building.
Let AC be the ladder and A be the position of the window
Then,
AC = 25 m , AB = 20 m
By using Pythagoras theorem,
∴ AB² = AC² + BC²
(Here, both square's gets cancelled)
Therefore, the distance of the foot of ladder from the building is "15 cm"
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