nomer 1 aja pakai cara yaa....

Cari sisi persegi dulu
Lprsgi = s^2
169 = s^2
s = 13 cm
Cari Kprsgi
K = 4s
= 4 x 13
= 52 cm


Kp = Kpp
52 = 2(p+l)
52 /2 = 15 + l
26 = 15 + l
l = 26 - 15 = 11 cm

A)
Lebar = 11 cm

B)
Luas = p x l
= 15 x 11
= 165 cm^2