Alin A
11 Februari 2026 02:02
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Alin A
11 Februari 2026 02:02
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Fajar M
11 Februari 2026 10:14
<p>A.K=60/360×22/7×84=⅙×22/7×84=44cm</p><p>L =1/6×22/7×42²=22×42=924cm²</p><p>B.k1=¼×3,14×48=3,14×12=37,68</p><p>K2=¼=3,14×32=3,14×8=25,12 </p><p>K=37,68 – 25,12=12,56cm</p><p>L1=¼×3,14×24²=3,14×144=452,16</p><p>L2=¼×3,14×16²=3,14×64=200,96</p><p>L=452,16 – 200,96=251,2cm²</p><p>C.k1=72/360×22/7×70=22×2=44</p><p>K2=⅕×22/7×42=22×6/5=26,4</p><p>K=44,0-26,4=17,6cm</p><p>L1=⅕×22/7×35²=22×35=770</p><p>L2=⅕×22/7×21²=22×21/5=13,2</p><p>L=770 – 13,2 =756,8cm²</p><p>D.k1=2(21+20)=2×41=82</p><p>K2=⅕×22/7×42=22×6/5=26,4</p><p>K=82 – 26,4=55,6cm</p><p>L1=21×20=420</p><p>L2=⅕×22/7×21²=22×21/5=13,2</p><p>L=420 –13,2=406,8cm²</p>
A.K=60/360×22/7×84=⅙×22/7×84=44cm
L =1/6×22/7×42²=22×42=924cm²
B.k1=¼×3,14×48=3,14×12=37,68
K2=¼=3,14×32=3,14×8=25,12
K=37,68 – 25,12=12,56cm
L1=¼×3,14×24²=3,14×144=452,16
L2=¼×3,14×16²=3,14×64=200,96
L=452,16 – 200,96=251,2cm²
C.k1=72/360×22/7×70=22×2=44
K2=⅕×22/7×42=22×6/5=26,4
K=44,0-26,4=17,6cm
L1=⅕×22/7×35²=22×35=770
L2=⅕×22/7×21²=22×21/5=13,2
L=770 – 13,2 =756,8cm²
D.k1=2(21+20)=2×41=82
K2=⅕×22/7×42=22×6/5=26,4
K=82 – 26,4=55,6cm
L1=21×20=420
L2=⅕×22/7×21²=22×21/5=13,2
L=420 –13,2=406,8cm²
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