Old definition or new

Exercise and reference answers

Left

Old ratios

Items

1. Item

   Acute angles only

   Answer

   Old ratios

2. Item

   Triangle sides

   Answer

   Old ratios

3. Item

   Right angle needed

   Answer

   Old ratios

4. Item

   Any angle at all

   Answer

   Functions

5. Item

   Unit circle point

   Answer

   Functions

6. Item

   Radian measure

   Answer

   Functions

Right

Functions

Instructions

Swipe left for the old ratios, right for the functions.

Explanation