luas lingkaran = π x r²
22/7 x 56²
22/7 x 3.136
22 x 448
9856 cm²
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r adalah jari jari
Jawabannya = 9.856 cm
luas lingkaran = π x r²
22/7 x 56²
22/7 x 3.136
22 x 448
9856 cm²