Find the missing shape in the pattern.
First, we need to find out what the rule is or what the pattern is: triangle, rectangle, square. Let’s check to see if the pattern continues: triangle, rectangle, square. Next is the missing number [shape]. And we start the pattern again.
Triangle, the missing shape is a triangle. We found the answer by identifying the pattern: triangle, rectangle, square. And we continued the pattern until we found the missing shape.