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Question
use the shapes to make an aab pattern.
Identify the pattern rule
The problem asks to create an "AAB pattern" using the two given shapes: a purple triangle and a green plus sign. An AAB pattern repeats a sequence of two identical elements followed by a different third element.
Assign shapes to pattern variables
Let shape A be the purple triangle and shape B be the green plus sign.
The repeating unit AAB is:
- A: purple triangle
- A: purple triangle
- B: green plus sign
Extend the pattern to fill the 12 slots
Repeating the unit "triangle, triangle, plus" across the 12 available slots:
- Slots 1–3: triangle, triangle, plus
- Slots 4–6: triangle, triangle, plus
- Slots 7–9: triangle, triangle, plus
- Slots 10–12: triangle, triangle, plus
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Use the shapes to make an AAB pattern.
<blank>triangle, triangle, plus, triangle, triangle, plus, triangle, triangle, plus, triangle, triangle, plus</blank>