Jawaban:
v=197.120cm²
Penjelasan dengan langkah-langkah:
r=d÷2
[tex]v = \pi. {r}^{2}.t \\ = \frac{22}{7} . {28}^{2} .80 \\ = 197.120 {cm}^{2} [/tex]
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Jawaban:
v=197.120cm²
Penjelasan dengan langkah-langkah:
r=d÷2
[tex]v = \pi. {r}^{2}.t \\ = \frac{22}{7} . {28}^{2} .80 \\ = 197.120 {cm}^{2} [/tex]