Hello, nikie1o2!
The height of a wall is 10m.
A pole of unknown length leans against the wall
so that the top is even with the top of the wall.
If the bottom of the pole is moved 1 m further from the wall,
the pole will fall to the ground.
What is the length of the pole? Code:
A o
 *
 *
 * ______
10  * √x²+100
 *
 *
 *
C o       o B
x
The pole is
The wall is: .
The bottom of the pole is m from the wall.
The pole is: .
If the bottom of the pole is moved 1 m further from the wall,
. . the pole will fall to the ground.
Code:


 ______
   √x²+100   :
A o * * * * * * o * o C
:   x   : 1 :
We have: .
Square: .
Therefore, the length of the pole is: .