Penjelasan dengan langkah-langkah:
28 = d
r = 28÷2 = 14
L arsir = ¾L lingkaran
L = ¾ × π × r²
L = ¾ × 22/7 × 14 × 14
L = ¾ × 22 × 2 × 14
L = ¾ × 44 × 14
L = 33 × 14
L = B. 462 cm²
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Penjelasan dengan langkah-langkah:
28 = d
r = 28÷2 = 14
L arsir = ¾L lingkaran
L = ¾ × π × r²
L = ¾ × 22/7 × 14 × 14
L = ¾ × 22 × 2 × 14
L = ¾ × 44 × 14
L = 33 × 14
L = B. 462 cm²