Keliling = AB+BC+CD+DA
= 11+5+11+5 = 32 cm
Jadi, keliling ABCD adalah 32 cm
ab = cd
da = cb
11 × 2 + 5 × 2 = 32 cm
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Keliling = AB+BC+CD+DA
= 11+5+11+5 = 32 cm
Jadi, keliling ABCD adalah 32 cm
ab = cd
da = cb
11 × 2 + 5 × 2 = 32 cm