Centroid of a composite lamina — a square hole is punched out of a circular plate; the square's diagonal equals the circle's radius r. The distance of the centroid of the remainder from the corner of the square that lies on the circle's circumference is:

Difficulty: Medium

• r / 3
• r * (2 / 3π)
• cannot be determined from the given data
• r / 2
• r * (4 / 3π)