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16:2 = 8
s² = 6² + 8²
s² = 36 + 64
s² = 100
s = √100
s = 10m
k = 4 x s
k = 4 x 10
k = 40m
banyak pohon
= 40 : 2
= 20 pohon
s^2= 8^2+6^2
s^2= 64+36
s^2=100
s= √100
s= 10 m
K= 4s
K= 4(10)
K= 40m
Banyak pohon
=40/2
= 20