Practice problem
What is the area of a circle with radius 1x\frac{1}{x}x1?
1x\frac{1}{x}x1
πx\frac{\pi}{x}xπ
1x2\frac{1}{x^2}x21
πx2\frac{\pi}{x^2}x2π
Type a concept, like “slope” or “photosynthesis”.
