Answer:
A. 7.5 cm2
Explanation:
Right triangles area is calculated as follows:
Area = (1/2)*height*base
For the smaller triangle:
Area = (1/2)*6*2 = 6 cm²
For the larger triangle:
Area = (1/2)*9*3 = 13.5 cm²
The difference between the area of the large triangle and the area of the small triangle is 13.5 - 6 = 7.5 cm²