Diketahui : luas jajargenjang abcd = 1.260cm²
Ditanya keliling
Jawab=
Sisi miring jajargenjang = 1.260 : 60 = 21 cm
Keliling = 2 ×60 + 2× 21
= 120 + 42 = 162 cm
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Diketahui : luas jajargenjang abcd = 1.260cm²
Ditanya keliling
Jawab=
Sisi miring jajargenjang = 1.260 : 60 = 21 cm
Keliling = 2 ×60 + 2× 21
= 120 + 42 = 162 cm