hitung keliling bangun berikut
Penyelesaian:
a.)d=10cm
s=10cm
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K=3×s+½×2Πr
K=3×10+3,14×10
K=30+31,4
K=61,4cm
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b.)P=30-14=16cm
L=14cm
r=14cm
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K=2×P+L+¼×22/7×r+r
K=2×30+14+¼×22/7×14+14
K=60+14+¼×22×2+14
K=60+28+½×22
K=88+11
K=99cm
[tex] \boxed{ \colorbox{black}{ \sf{ \color{lightgreen}{ answered\:by\:Duone}}}} [/tex]
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