5. A ladder is placed in such a way that its foot is at a distance of 3 m from a wall and its
top reaches a window 4 m above the ground. Determine the length of the ladder.
For class seventh
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Answer:
Let length of the ladder be = x
So,
x^2 = (3)^2 + (4)^2
=> x^2 = 9 + 16
=> x^2 = 25
=> x = root 25
=> x = 5
Therefore, length of the ladder = 5 m
Ans. 5 m.
Hope it helps.
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