Plz help with question 4 and explain ! Will give branliest answer to whoever gives the most thorough explanation

Answer: 35 units^2
Step-by-step explanation: The trick is not to try and calculate the area of the triangle, but the spaces around it. Calculate all the white triangles in the rectangle then subtract them to the rectangle.
14*3/2=21
8*8/2=32
6*8/2=24
21+32+24=77
8*14=112
112-77=35