Question

No 5 jawab y
besok dikumpul

Answer 1

L= phi x r^2
70650 =3,14 r^2
r^2=70650/3,14 = 22500
r=akar 22500 = 150
d=2 x r = 2 x 150 = 300 m

keliling=2 x phi x r = 2 x 3,14 x 150 = 942 m

banyak pohon yang ditanam 942 : 6 = 157 pohon