The figure is made up of four identical squares of side length 12 inches. A quadrant is drawn inside each square. Find the total area of the shaded parts of the figure. Use 3.14 as an approximation for π.

Answer: 164.16 in²
Step-by-step explanation:
Area of the shaded region = [4 quarter circles - 4*triangular regions]
= 4*(1/4)*π (12)²- 4*(12*12/2)
= 3.14(144) - 2(144)
= 164.16 in²