Answer:
The area of ABCD = 12² = 12 * 12 = 144 m²
Explanation:
Given that ABCD in the model, is a square.
All the edges of the pyramid in the model have length 12m.
So, the length of one side of the square = 12 m
The area of the square = (side length)²
∴ the area of ABCD = 12² = 12 * 12 = 144 m²