Practice problem
A circle has area π3\pi^3π3. What is the area of a sector with angle 18∘18^\circ18∘?
π18\frac{\pi}{18}18π
π20\frac{\pi}{20}20π
π318\frac{\pi^3}{18}18π3
π320\frac{\pi^3}{20}20π3
Type a concept, like “slope” or “photosynthesis”.