Kk tolong jawab besok dikum pulin​

Jawaban:

3. K = π x d

= 22/7 x 56

= 176m

jarak pohon = 2m

maka banyak pohon = 176m/2m

= 88 pohon

1 pohon = Rp50.000

88 pohon = Rp50.000 x 88

= Rp4.400.000

4. K = π x d

88 = 22/7 x d

d = 88 x 7/22

d = 28m

L = 1/4 x π x d²

= 1/4 x 22/7 x 28 x 28

= 616m²

Biaya = Rp30.000 x 616

= Rp18.480.000

5. K = 2 x π x r

= 2 x 3,14 x 10

= 62,8m

Biaya = Rp35.000 x 62,8

= Rp2.198.000