Practice problem
What is the area of a circle with diameter 4y\frac{4}{y}y4?
2y\frac{2}{y}y2
4y\frac{4}{y}y4
4πy\frac{4\pi}{y}y4π
4πy2\frac{4\pi}{y^2}y24π
Type a concept, like “slope” or “photosynthesis”.
