Answer:
The answer is gonna be
Explanation:
first you obtain the area of the quad IF the green triangle is there. You will get 9*7 which is 63. then you find the area of the green triangle which is 7, as 9-7 is the length of the base of the green triangle. that means the area of the triangle is 1/2*7*2 which equals to 7. that means the area of the quad is 63-7, which is 56.