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4 × 5s = 20s m
luas
s² = 5s² = 25s² m²
jika s = 2
keliling = 20s = 20(2) = 40 m
luas = 25s² = 25 × 2² = 25 × 4 = 100 m²
maaf kalau salah
b.Luas=S×S=5s×5s=25s²
c.5s=5×2=10
Keliling=4×S=4×10=40
Luasa=S×S=10×10=100