A ladder 17 m long is placed against a wall of a house in such a way that the foot of the ladder is 15m away from the wall. Upto what height will the ladder reach on the wall ?
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13
In a right angled triangle
Hypotenuse=17 m
Adjacent. =15 m
Hypotenuse^2=Opposite^2+Adjacent^2
Opposite^2=Hyp^2-Adj^2
Opposite^2=17^2-15^2
=(17-15)(17+15)
=2(32)
=64
Opposite=√64
=8m
The height of the wall upto the ladder= 8 m
Hypotenuse=17 m
Adjacent. =15 m
Hypotenuse^2=Opposite^2+Adjacent^2
Opposite^2=Hyp^2-Adj^2
Opposite^2=17^2-15^2
=(17-15)(17+15)
=2(32)
=64
Opposite=√64
=8m
The height of the wall upto the ladder= 8 m
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The solution is in the pic
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