Click on the below link to learn about 2D shapes. There is a worksheet and a quiz at the end.

 

https://classroom.thenational.academy/lessons/comparing-and-sorting-2d-shapes-64wkjc?activity=intro_quiz&step=1&view=1

https://classroom.thenational.academy/lessons/describing-and-sorting-2d-shapes-cmtpae?step=1&activity=intro_quiz