Berapa luas kantor sebenarnya?

p denah = 1 cm + 3 cm + 2 cm = 6 cm
l denah = 1 cm + 2 cm = 3 cm

p sebenarnya = 6 cm ÷ skala = 6 cm ÷ 1 : 500 = 6 cm * 500 = 3000 cm = 30 m
l sebenarnya = 3 cm ÷ skala = 3 cm ÷ 1 : 500 = 3 cm * 500 = 1500 cm = 15 m

L = p * l = 30 m * 15 m = 450 m² (B)