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Verified answer
Diketahui :- Panjang = 22 cm
- Lebar = 6 cm
- Diameter = 22 cm - 8 cm = 14 cm
- Jari - Jari = ½ × 14 cm = 7 cm
Ditanya : Luas Bangun = .....?
Penyelesaian :
- Luas Persegi Panjang :
L = p × l
L = 22 cm × 6 cm
L = 132 cm²
- Luas Setengah Lingkaran :
L = ½ × π × r × r
L = ½ × 22/7 × 7 × 7
L = 11/7 × 7 × 7
L = 11 × 7
L = 77 cm²
- Luas Bangun :
L = 132 cm² + 77 cm2
L = 209 cm²
Jawaban : C. 209 cm²
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