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d₂ = 18 m
a = d₁ : 2
= 24 m : 2
= 12 m
b = d₂ : 2
= 18 m : 2
= 9 m
a² + b² = c²
12² + 9² = c²
144 + 81 = c²
225 = c²
√225 = √c²
15 = c
s = c
= 15 m
K = 4 × s
= 4 × 15 m
= 60 m
Pohon = Keliling : Jarak antar pohon
= 60 m : 3 m
= 20
Jadi banyak pohon yang mengelilingi kebun tersebut adalah 20 pohon.
yg vertical panjangnya 24
yg horizontal panjangnya 18
cari sisi miringnya pakai pitagoras nanti dapat 15. sisi miringnya ada 4 jadi jika dikalikan 4×15=60.
60:3 = 20 pohon