caranya tolong ya plissss

[tex]keliling = \frac{22}{7} \times 21 = 22 \times 3 = 66m \\ biaya = 125000 \times 66 = rp8.250.000[/tex]
C. Rp8.250.000

semoga bermanfaat:)

Bangun Datar

K taman = K lingkaran
= π x d
= 22/7 x 21
= 22 x 3
= 66 cm

Total biaya = 66 x 125.000
= Rp8.250.000,00 (C).

*semoga membantu. sukses selalu ^_^