Lingkaran memiliki luas 144π.Keliling lingkaran tersebut adalah.... π.Bantu jwb ya... Pake cara... :)

Please, let me answer your question :)
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Mapel : Matematika
Tentang : Bangun Datar
Pertanyaan yg diajukan : 1
Pembahasan :

Diketahui :
- Luas (L) : 144π

Ditanya :
- Keliling (K)

Cara :

[tex]l = \pi \times {r}^{2} \\ \\ 144 = \pi \times {r}^{2} [/tex]

[tex]r = \sqrt{144} \\ \\r = 12 [/tex]

[tex]k = 2 \times \pi \times r \\ \\ k = 2 \times \pi \times 12[/tex]

[tex]k = 2\pi \times 12 \\ \\ k = 24\pi[/tex]

Jadi, hasilnya adalah 24π

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Hopefully this is the best for you. And please, MAKE BRAINLY GREAT AGAIN!!!

✚ Heil Manstein! ✚