Penjelasan dengan langkah-langkah:
Panjang = 22 Cm
Lebar = 6 Cm
Diameter ½ lingkaran = 22 - 8 = 14 Cm
Keliling :
= K ½ lingkaran + K persegi panjang
= (½ × π × d) + (2 × (p + l))
= (½ × 22/7 × 14) + (2 × (22 + 6))
= (11 × 2) + (2 × 28)
= 22 + 56
= 78 Cm (A)
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Penjelasan dengan langkah-langkah:
Panjang = 22 Cm
Lebar = 6 Cm
Diameter ½ lingkaran = 22 - 8 = 14 Cm
Keliling :
= K ½ lingkaran + K persegi panjang
= (½ × π × d) + (2 × (p + l))
= (½ × 22/7 × 14) + (2 × (22 + 6))
= (11 × 2) + (2 × 28)
= 22 + 56
= 78 Cm (A)