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- Bagian a
Dik: r = 10 cm
Dit: L...?
Jawaban:
L = π × r × r
= 3,14 × 10 cm × 10 cm
= 31,4 cm × 10 cm
= 314 cm².
- Bagian b
Dik: r = 14 cm
Dit: L...?
Jawaban:
[tex]l = \pi \times r \times r \\ \\ = \frac{22}{7} \times 14 \times 14 \\ \\ = \frac{22 \times 14 \times 14}{7} \\ \\ = \frac{4.312}{7} \\ \\ = { \red{ \sf \: 616 \: {cm}^{2}}} \\ [/tex]
[tex]\boxed{ \bold{Answer \: By : \: }{ \boxed{ \green{ \bold{ EFJ2503 }}}}}[/tex]
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