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p=8cm
l=2 cm
L=8×2
=16 cm²
L=p×l
p = 8- 2= 6cm²
l=2cm²
L=6×2=12 cm²
L=p×l
p=6-2=4cm
l=2cm
L=4×2=8cm²
Luas seluruh=16+12+8=36cm²
K=8+2+2+2+2+2+4+6
=28 cm²
b. L= p×l
=6×4
=24 cm²
L=a×t/2
=6×4/2
=12 cm²
L seluruh=24+12= 36 cm²
K= 6+4+5+5+4
= 24 cm²