tentukan luas lingkaran dengan ukuran berikut

a.
L = πr²
L = 22/7 × 14 × 14
L = 22 × 2 × 14
L = 44 × 14
L = 616 cm²

b.
L = πr²
L = 3,14 × 20 × 20
L = 3,14 × 400
L = 1.256 cm²

c.
L = πr²
L = 22/7 × 35 × 35
L = 22 × 5 × 35
L = 110 × 35
L = 3.850 cm²

Maaf Kalau Salah