IKMC 2027 - Grades 11-12 - Self-study SET 8 - Thematic Batch 3 Question 27

Question 27

Which of the five circles described in the choices is smallest?

1. The circle with area 40 cm²
2. The circle with radius 3 cm
3. The circle with circumference 15 cm
4. The circle with diameter 7 cm
5. The circle whose greatest distance between two points is 2π cm