Answer:
The portrait is narrow and landscape is wider.
Step-by-step explanation:
Thinking process:
Take an A4 paper as an example. The paper generally has these dimensions: Length = 297 mm
Breadth = 200 mm
Portrait
For a portrait orientation, the base of the page will be 200 mm while the height is 297 mm. In this effect, the portrait has a narrower base.
Landscape
The landscape orientation is different from the portrait. If we revert back to our example, the base will be 297 mm and the breath (height) will be 200 mm.