please bantu jawab ya kak...^^

jawabannya C. 234m2 jangan lupa diperiksa kembali

K = 2(p+l)
70 = 2( 5x-4+ x+3)
70 = 2(6x-1)
70 = 12x - 2
72= 12x
72/12 = x
6=x

Jadi p= 5x6-4 =26
l= 6+3= 9
L =pxl
= 26x9 = 234mkuadrat