→ lingkaran ←
Luas yg diarsir
= 3/4 × luas lingkaran
= 3/4 × πr²
= 3/4 × 314/100 × 20 × 20
= 942 cm² ✔
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→ lingkaran ←
Luas yg diarsir
= 3/4 × luas lingkaran
= 3/4 × πr²
= 3/4 × 314/100 × 20 × 20
= 942 cm² ✔
luas = 3/4 × 3,14 × 20 × 20
luas = 3/4 × 1.256
luas = 942 cm2