Problem #PRU-100396

Problem

(a) A picnic spot has a form of a 100 m$\times$100 m square. Is it possible to partially cover it with non-intersecting square picnic blankets so that the total sum of their perimeters will be greater than 10,000 m?

(b) One sunny day almost every citizen came to the picnic spot from point (a). All of them brought square picnic blankets. In a local newspaper there was mentioned that the total area of grass covered with picnic blankets was greater than 20,000 m${}^2$. Do you think it was possible or did they make a mistake in their computations?