Covering Rectangle Puzzle

This is a nice puzzle from the Maths Masters team, Burkard Polster (aka Mathologer) and Marty Ross as part of their “Summer Quizzes” offerings.

“In the picture does the green rectangle cover more or less than half of the [congruent] red rectangle?”

It is evident from the problem solution that the two rectangles are the same, so I made it explicit.

See the Covering Rectangle Puzzle