L = π × r²
= 3,14 × 11²
= 3,14 × 121
= 379,34 cm
L lingkaran × ¾
= 379,34 × ¾
= 284,505
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L = π × r²
= 3,14 × 11²
= 3,14 × 121
= 379,34 cm
L lingkaran × ¾
= 379,34 × ¾
= 284,505