Jawab:
Penjelasan dengan langkah-langkah:
Diameter lingkaran (d) = 32 - 12 = 20 cm
K = (Keliling Persegi Panjang - diameter lingkaran) + Keliling [tex]\frac{1}{2}[/tex] Lingkaran
K = (2(p + l) - 20) + [tex]\frac{1}{2}[/tex] πd
K = (2(32+16) - 20) + [tex]\frac{1}{2}[/tex] 3,14x20
K = (96 - 20) + [tex]\frac{(3,14)(20)}{2}[/tex]
K = 76 + 31,4
K = 107,4 cm
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Jawab:
Penjelasan dengan langkah-langkah:
Jawab:
Diameter lingkaran (d) = 32 - 12 = 20 cm
K = (Keliling Persegi Panjang - diameter lingkaran) + Keliling [tex]\frac{1}{2}[/tex] Lingkaran
K = (2(p + l) - 20) + [tex]\frac{1}{2}[/tex] πd
K = (2(32+16) - 20) + [tex]\frac{1}{2}[/tex] 3,14x20
K = (96 - 20) + [tex]\frac{(3,14)(20)}{2}[/tex]
K = 76 + 31,4
K = 107,4 cm