The figure consists of 12 congruent equilateral triangles. The area of one equilateral triangle is a cm2. The area of the hexagon, shaded slightly darker, is b cm2. A figure is comprised of 12 congruent equilateral triangles. A hexagon is formed by 6 triangles. The area of the 6 triangle is shaded slightly darker. Which expressions represent the area of the entire shaded region, including the light and dark shading? Select three options. 12a cm2 2b cm2 (6a – b) cm2 (12a + 2b) cm2 (6a + b) cm2