Answer:
2b³ cm²
Explanation:
The Area of each square :
Area of a square = a² ; where a = side length
The side length = b
Hence, Area, A = b² = b² cm²
The total number of squares:
Number of rows * number of squares per row
2 * b = 2b
Therefore, total area :
Total number of squares * area of each square
(2b) * b²
= 2b³ cm²