Tolong di jawab ya kakak kakak..

Kpp = Kp = 100 cm

Lpp = sp - 5

Lpp = ....?

Kp   = 4sp
100 = 4sp
  25 = sp

Lpp = sp - 5
       = 25 - 5
       = 20 cm

Kpp  = 2 (p + l)
100  = 2 (p + 20)
 50   = p + 20
   p   = 30 cm


Lpp = p x l
       = 20 cm x 30 cm
       = 600 cm²


Semoga Membantu!!!