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MathNet 2018-part-07 — 177 problems (EN–VI) Question 52

Math Olympiad Vault · MathNet 2018-part-07 — 177 problems (EN–VI)

Question 52

A square can be divided into four congruent figures as shown:
Question illustration
If each of the congruent figures has area $1$, what is the area of the square?