ಉಳಿದ ಮೂರು ಆಕೃತಿಗಳಿಗಿಂತ ಭಿನ್ನವಾದ ಆಕೃತಿಯನ್ನು ಆಯ್ಕೆ ಮಾಡಿ.

In figures 1, 2 and 4 the line inside the circle is a diameter: it passes through the centre. In figure 3 the line is a chord that does not pass through the centre, so figure 3 is different.