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: 50 x 20
: 1000 cm
keliling : 2 (p+l)
: 2 (50 + 20 )
: 140 cm
= 50 cm ×20 cm
= 1000 cm 2
keliling = 2 (p+l )
= 2 ( 20 cm + 50 cm )
= 2 (70 cm )
= 140 cm