The dimensions of triangle B are twice the dimensions of triangle A. The area of triangle A is 28 cm2.
What is the area of triangle B?
Since the dimensions of triangle B are twice that of triangle A, the area of triangle B will be four times the area of triangle A.
Area of triangle B = 4 * 28 cm^2
Area of triangle B = 112 cm^2
Therefore, the area of triangle B is 112 cm^2.