Multiply 11 with 9
11 x 9 = 99
Area of the whole is 99 ft²
Find the area of the parallelogram that is not part of the rectangle.
Subtract 11 with 6
11 - 6 = 5
Multiply 5 (length) with 5 (width)
5 x 5 = 25
Area of the part missing is 25 ft²
Subtract the whole with the part missing.
99 - 25 = 74
74 ft², or B) is your answer
hope this helps