please explain the answer with properties
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please explain the answer with properties
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Step-by-step explanation:
we know that window is perpendicular to base therefore using ladder makes a right angled triangle with it
hypotenuse = 25m
perpendicular distance = 20m
base = ?
using Pythagoras theorem
hypotenuse ²= base²+perpendicular ²
25² = base²+ 20²
625= base ²+ 400
625-400 = base²
base = √225
base = 15cm
hence the distance of the foot of the ladder from the building is 15m