![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
Xiao Ming accidentally landed the kite on the 4.8-meter wall when he was flying the kite. He asked his father to help him get it. His father moved the ladder and placed it stably (the distance between the low end of the ladder and the wall is about 1 / 3 of the length of the ladder). At this time, the top of the ladder just reached the wall. His father asked Xiao Ming if the length of the ladder is 5 meters? Can you help Xiao Ming calculate it together? Steps and formulas are required
The ladder is beveled
Let the length of the ladder be X
Then the distance between the bottom of the ladder and the wall is x / 3
Using Pythagorean theorem
X^2-(X/3)^2=4.8^2
We can get x ^ 2 = 25.92
So the length of the ladder is a little more than 5 meters
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