Question 27
A square of side length 10 cm is sitting on a line. Point $P$ is the corner of the square which starts at the bottom left, as shown. Without slipping, the square is rolled along the line in a clockwise direction until $P$ returns to the line for the first time.
To the nearest square centimetre, what is the area under the curve traced by $P$?
To the nearest square centimetre, what is the area under the curve traced by $P$?