r = 20 cm/2 = 10 cm
Lp = 2πr(r + t)
Lp = 2(3,14)(10)(10 + 50)
Lp = (62,8)(60)
Lp = 3.768 cm²
opsi C
Jawab:
r=d/2
r=20/2
r=10cm
Penjelasan dengan langkah-langkah:
L=2.π.r.(r+t)
L=2x3,14x10x(10+50)
L=62,8x60
L=3.768cm²
(Opsi C)
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r = 20 cm/2 = 10 cm
Lp = 2πr(r + t)
Lp = 2(3,14)(10)(10 + 50)
Lp = (62,8)(60)
Lp = 3.768 cm²
opsi C
Jawab:
r=d/2
r=20/2
r=10cm
Penjelasan dengan langkah-langkah:
L=2.π.r.(r+t)
L=2x3,14x10x(10+50)
L=62,8x60
L=3.768cm²
(Opsi C)