[tex] \\ luas lingkaran 616cm {}^{2} berapa jari jari[/tex]

Luaslingkaran = πr^2
πr^2 = 616
3,14 r^2 = 616
r^2 = 616/3,14
r^2 =√ 196
r = 14 cm

Jawab :

L.lingakaran = π . r²
616 = 22/7 . r²
r² = 616 ÷ 22/7
r² = 616 × 7/22
r² = 196
r = √196
r = 14 cm