Question 1
Which set of 2D shapes can be combined (without overlap) to form this 3x3 triangle pattern?
Target shape:
▲▲▲
▲▲▲
▲▲▲
Option A: "▲▲", "▲▲▲", "▲▲", "▲"
Option B: "▲▲", "▲", "▲▲▲", "▲▲"
Option C: "⬛⬛⬛", "⬛⬛", "⬛⬛", "⬛"
Option D: "▲▲▲", "▲▲", "▲", "▲▲"
The correct set contains shapes that exactly tile the target without gaps or overlaps.
Option A shows the correct decomposition.
Option A shows the correct decomposition.