There are 6 trees on the shortest side, that is, there are 5 intervals.
It is known that the second side has 12 intervals and 13 trees.
The third side has 13 intervals, and 14 trees.
Subtract one from each corner.
That is, the total * * * is 6+ 13+ 14-3=30.
Plant 30 trees on the side of each right triangle.
Four triangles * * * need to plant 4X30= 120 trees.
(1) Information Security Course
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