Two circles length = 12cm
Diameter of each circle= 6cm
Formula for area of a circle is pie-radius-squared
Radius of the circle is 1/2 of diameter=3
Formula pie-3squared= 9pie=area of one circle 9pie multiply by 2 = 18pie = area of 2 circles
Now the area of the rectangle
Formula is length multiply by width
Length is 12cm
Width is the diameter of the circle= 6cm
12 multiply by 6= 72
Now take the area of both circles from the area of the rectangle to find the shaded area
72cm squared - 18 pie
(72-18pie)cm squared =15.5cm squared so the answer is the second option
