Size of the room as depicted on the picture = 5 cm × 7 cm
Actual length of shorter side = 6 m
⇒ The size being shown at 5 cm is actually 6 m (or 600 cm)
⇒ In the picture, 1 cm represents [tex]\frac{600}{5}[/tex] cm or 120 cm
Hence, the scale of the picture is 1 cm = 120 cm
⇒ Length of the longer side = 120 × 7 cm = 840 cm = 8.4 m
