* Designed by Mechelle Griffin, a high school math teacher
* Trigo is a fun way to practice trig functions of special angles
* To get a bingo and win the game, fill a row, column, or diagonal with correct answers
* Gives immediate feedback to the player
* Player can opt to get hints on each play
* Trigo is a fun way to practice trig functions of special angles
* To get a bingo and win the game, fill a row, column, or diagonal with correct answers
* Gives immediate feedback to the player
* Player can opt to get hints on each play
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