Keliling p.panjang:
2×(p+l):
2×(6+15):
2×21:
42
Maaf kalo salah
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2×(15+6)
2×21
42mpangkat 2
Keliling p.panjang:
2×(p+l):
2×(6+15):
2×21:
42
Maaf kalo salah