Question

Denah berbentuk persegi panjang P : 8cm L : 5cm skalanya 1:400 berapa keliling nya

Answer 1

P = 8×400
   = 3200 cm / 32m
l = 5×400
  = 2000 cm / 20m
k = 2(32+20)
   = 2 × 52
   = 104 m

Answer 2

P= 8cm×400
  = 3200cm
  = 32m
L= 5cm×400
  = 2000cm
  = 20m
K= 2(32×20)
  =104m
maaf kalo salah