K = 2 ( p + l )
34 = 2 (9 + l)
34 = 18 + 2l
34 - 18 = 2l
16 = 2l
8 = l
maka, lebar nya adalah 8 cm
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K = 2 ( p + l )
34 = 2 (9 + l)
34 = 18 + 2l
34 - 18 = 2l
16 = 2l
8 = l
maka, lebar nya adalah 8 cm
Verified answer
2 x 9 cm + 2 x lebar = 34 cm18 cm + 2 x lebar = 34 cm
2 x lebar = 34 cm - 18 cm = 16 cm
lebar = 16 cm / 2
lebar = 8 cm
Jadi lebar persegi panjang tersebut adalah 8 cm.