Question 9
The diagram shows a rubber band tightly wrapped around three identical solid cylinders (shaded). The base radius of each cylinder is 10 cm. What is the total area, in $\mathrm{cm}^2$, of the unshaded regions within the rubber band? Give the answer in terms of $\pi$.
Answer entry: use pi for $\pi$, sqrt(3) for $\sqrt3$, and * for multiplication; do not include units.
Answer entry: use pi for $\pi$, sqrt(3) for $\sqrt3$, and * for multiplication; do not include units.