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= 26 × 14
= 364 cm²
= π × r²
= × 7²
= 22 × 7
= 154 cm²
L = -
L = 364 - 154
L = 210 cm² (A)
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Diketahui :
r = 56 cm
Ditanya :
L?
Jawab :
L = π × r²
L = × × 56²
L = 11 × 11 × 56
L = 6.776 cm² (A)