Question

use the shapes to make an aab pattern.

Explanation:

Identify the pattern rule

An AAB pattern repeats a sequence of three elements where the first two elements are identical (A) and the third element is different (B).

Assign shapes to pattern variables

Let the green triangle represent shape A and the blue heart represent shape B.

Construct the repeating sequence

Repeating the AAB unit (Triangle, Triangle, Heart) across the 12 empty slots yields:
Triangle, Triangle, Heart, Triangle, Triangle, Heart, Triangle, Triangle, Heart, Triangle, Triangle, Heart.

Answer:

Green Triangle, Green Triangle, Blue Heart, Green Triangle, Green Triangle, Blue Heart, Green Triangle, Green Triangle, Blue Heart, Green Triangle, Green Triangle, Blue Heart