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Luas = 3,14 × 36 × 36
Luas = 4069,44(satuan persegi)
Luas = phi × r^2
Luas = 3,14 × 34 × 34
Luas = 3629,84(satuan persegi)
r = 36 cm
L = πr²
L = 3,14 × 36²
L = 3,14 × 1.296
L = 4.069,44 cm²
Bagian Kedua
r = 34 cm
L = 3,14 × 34²
L = 3,14 × 1.156
L = 3.629,84 cm²
semoga berguna +_+