Question 195
What is the radius of the small circle in the figure opposite, if the side of the square is $1$ long?
- $3-2 \sqrt{2}$
- $\frac{1}{4}$
- $\frac{\sqrt{2}}{4}$
- $\frac{\sqrt{2}-1}{2}$
- $4-3 \sqrt{2}$.
MathNet 2003 — Part 01 Question 195
Math Olympiad Vault · MathNet 2003 — Part 01