Spot the one that does not fit

Exercise and reference answers

Questions

1. Items

   1. Metre
   2. Degree
   3. Radian
   4. Minute

   Odd item

   Metre

2. Items

   1. cos x is a
   2. sin x is b
   3. Unit circle
   4. Obtuse triangle

   Odd item

   Obtuse triangle

3. Items

   1. Two pi radians
   2. One revolution
   3. Full turn
   4. Half turn

   Odd item

   Half turn

4. Items

   1. Point A
   2. Point B
   3. Quadrantal
   4. Acute angle

   Odd item

   Acute angle

Instructions

Tap the item that does not belong with the rest.

Explanation