Which one does not belong

Exercise and reference answers

Questions

1. Items

   1. Circle
   2. Ellipse
   3. Triangle

   Odd item

   Triangle

2. Items

   1. Rhombus
   2. Parabola
   3. Hyperbola

   Odd item

   Rhombus

3. Items

   1. Focus
   2. Diameter
   3. Directrix

   Odd item

   Diameter

4. Items

   1. A point
   2. Two crossing lines
   3. A full ellipse

   Odd item

   A full ellipse

Instructions

Tap the item that does not fit with the others.

Explanation