Question 117
a. What is the smallest number of circles of radius $\sqrt{2}$ that are needed to cover a rectangle of size $6 \times 3$?
b. What is the smallest number of circles of radius $\sqrt{2}$ that are needed to cover a rectangle of size $5 \times 3$?
b. What is the smallest number of circles of radius $\sqrt{2}$ that are needed to cover a rectangle of size $5 \times 3$?