Fly a lands on the edge of the ruler at a random point. fly b lands on the surface of the target at a random point. which fly is more likely to land in a yellow region? explain.

The fly that lands on the circular target is more likely to land on a yellow region. 

This is because the yellow area of the circular target has an area slightly larger than 12. Compare this to the yellow are of the rectangular target, who, assuming the height is 1 cm, has an area of 4 cm.