Jawab:Luas yg diarsir≈ 462 cm²
Penjelasan dengan langkah-langkah:Diketahui: ¾ lingkaran, jari-jari (r) = 14 cm {π ≈ ²²/₇}
Luasnya:¾ × Luas lingkaran =¾ × (π × r × r) ≈¾ × (²²/₇ × 14 × 14) ≈¾ × (22 × ¹⁴/₇ × 14) ≈¾ × (22 × 2 × 14) ≈¾ × (44 × 14) ≈3 × ⁴⁴/₄ × 14 ≈3 × 11 × 14 ≈33 × 14 ≈33 × (2 × 7) ≈66 × 7 ≈462 cm²
(Xcvi)
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Verified answer
Jawab:
Luas yg diarsir
≈ 462 cm²
Penjelasan dengan langkah-langkah:
Diketahui:
¾ lingkaran, jari-jari (r) = 14 cm {π ≈ ²²/₇}
Luasnya:
¾ × Luas lingkaran =
¾ × (π × r × r) ≈
¾ × (²²/₇ × 14 × 14) ≈
¾ × (22 × ¹⁴/₇ × 14) ≈
¾ × (22 × 2 × 14) ≈
¾ × (44 × 14) ≈
3 × ⁴⁴/₄ × 14 ≈
3 × 11 × 14 ≈
33 × 14 ≈
33 × (2 × 7) ≈
66 × 7 ≈
462 cm²
(Xcvi)