Question

diketahui : r = 21 , π = 22/7 tentukan luas lingkaran!​

Answer 1

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[tex] \\ \\ \\ \\ \\ [/tex]

K = π × r²

K = [tex] \tt \frac{22}{7} [/tex] × 21 × 21

K = 22 × 3 × 21

K = 22 × 63

K = 1.368 cm²

[tex] \\ \\ \\ \\ \\ [/tex]

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Ty!

Answer 2

Verified answer

Penjelasan dengan langkah-langkah:

[tex]l = \pi \times {r}^{2} [/tex]

[tex] \frac{22}{7} \times 21 \times 21[/tex]

[tex]22 \times 3 \times 21[/tex]

[tex]66 \times 21[/tex]

[tex] = 1.386cm²[/tex]