LUAS LINGKARAN 1.jika luas=75,36 jari jari =? 2.jika luas =1.017,36 diameter =? jawabnya pake cara ya

Luas lingkaran = ( pi ) × r²

1) L = ( pi ) × r²
75,36 = 3,14 × r²
r² = 75,36 ÷ 3,14 = 24
r = √24
r = 4,89 cm

2) L = ( pi ) × r²
1.017,36 = 3,14 × r²
r² = 1.107,36 ÷ 3,14 = 324
r = √324
r = 18 cm
diameter = 2 × r => 2 × 18 = 36 cm

*L=75,36
L=π×r^2
75,36=3,14×r^2
75,36/3,14=r^2
24=r^2
√(24)=r
2√(6)=r
*L=1017,36
1017,36=3,14×r^2
324=r^2
√(324=r
18=r