Jawab:
*3*
=luas pp 1+2(luassegitiga)+luaspp 2+luaspp 3
=10.9cm+2(1/2.8.6cm) +9.8cm+6.9cm
=90cm^2+48cm^2+72cm^2+54cm^2
=264cm^2
*4*
= 2 (π r 2 )+ 2 π r t
=2(22/7.7.2)+2.22/7.7.10
=2(44)+440
=88+440
=528cm^2
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Jawab:
*3*
=luas pp 1+2(luassegitiga)+luaspp 2+luaspp 3
=10.9cm+2(1/2.8.6cm) +9.8cm+6.9cm
=90cm^2+48cm^2+72cm^2+54cm^2
=264cm^2
*4*
= 2 (π r 2 )+ 2 π r t
=2(22/7.7.2)+2.22/7.7.10
=2(44)+440
=88+440
=528cm^2