vhetha
A) L = phi × r² 70.650 = 3,14 . r² r² = 70.650 ÷ 3,14 r = √ 22500 r = 150 m d = 150 × 2 = 300m b) k = 3,14 × 300 = 942 m c) byk phon = 942 ÷ 6 = 157 pohon
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farizsaptr
L = 2(phi)r×r 70650 = 2×3,14×r(kuadrat) 70650÷6,28= r(kuadrt) r(kuadrat) = 11250 r = 106,07 jadi diameter = 106,07×2 = 212,14 keliling waduk = phi × d = 3,14 × 212,14 = 666,1196 banyak pohon yang ditanam = 111 pohon
70.650 = 3,14 . r²
r² = 70.650 ÷ 3,14
r = √ 22500
r = 150 m
d = 150 × 2 = 300m
b) k = 3,14 × 300
= 942 m
c) byk phon = 942 ÷ 6
= 157 pohon
70650 = 2×3,14×r(kuadrat)
70650÷6,28= r(kuadrt)
r(kuadrat) = 11250
r = 106,07
jadi diameter = 106,07×2 = 212,14
keliling waduk = phi × d = 3,14 × 212,14 = 666,1196
banyak pohon yang ditanam = 111 pohon