Find the area of the composite figure.
21 ft
12 ft
9 ft
9 ft
6 ft
6 ft

Answer:
738 square ft
Step-by-step explanation:
Area of the composite figure
= 21*(12 + 9 + 6) + 9*(9 + 6) + 6*6
= 21*27 + 9*15 + 6*6
= 567 + 135 + 36
= 738 square ft