Dik Luas persegipanjg 28 1/2 Lebar 4 3/4 Brapa kelilingny

L= 28 1/2 = 14
l = 4 3/4 = 3
p= L/l = 14/3

keliling persegi 2p+ 2l
= 2×14/3 + 2× 3
= 28/3+ 6
= 9 1/3 + 6
= 15 1/3

Luas = 28 1/2 --> 57/2
Lebar = 4 3/4 --> 19/4
Panjang = ¿¿¿

L = p × l
57/2 = p × 19/4
p = 57/2 : 19/4
p = 57/2 × 4/19
p = 114/19
p = 6

Keliling persegi = 2p + 2l
Keliling persegi = 2.6 + 2.19/4
Keliling persegi = 12 + 19/2
Keliling persegi = 12 + 9,5 = 21,5