10 trees and the trees need to be put in 5 rows and in each row there needs to be 4 trees. how is this done?

Question

1 tree is used for 2 sides

Answer 1

=10 trees and the trees need to be put in 5 rows and in each row there needs to be 4 trees. how is this done?

place the 5 rows in a star shape and place a tree at each point and intersection.