Answer:
1. It is easier to find the area of a trapezoid than it is to find the area of a triangle all she would need to do is add the two bases which are both four to get eight then divide that by two and than multiply that by the height which is 5
so the answer to her problem would be 20
2 Since the parallelogram is just double the triangle all she would need to do is find the area of the trapezoid and divide that by two to find the area of the triangle.
3.
Triangle A=30
Triangle B=22.5
The Triangle area formula is A=1/2 base times height