Q. A 25m long ladder is placed against the wall in such a way that the foot of the ladder is 7m away from the wall. How up on the wall is the upper end of the ladder?
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Q. A 25m long ladder is placed against the wall in such a way that the foot of the ladder is 7m away from the wall. How up on the wall is the upper end of the ladder?
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Answer:
The ladder touches the wall at 24 m above from the floor
Step-by-step explanation:
The wall and the Base floor makes the angle 90°
So the ladder , base and the floor makes the right angled triangle
We know
hyp = 25cm
Base = 7 cm
To find:
the height where the ladder touches the wall
Solution:
By Pythagoras theorem
A² + B² = C²
A = 7 m
B = 'x' m
C = 25m
now,
(7)² + B² = 25²
B = √625 - 49
B = √576 m
B = 24 m
The ladder touches the wall at 24 m above from the floor
Hope this helps u
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