Answer: 703.5 ft²
Step-by-step explanation:
We see that the figure is broken up into a triangle and a rectangle, so we will find the area of the total figure using this information.
Area = Triangle + Rectangle
Area = 0.5BH + BH
Area = 0.5(21)(21) + (21)(23)
Area = 220.5 + 483
Area = 703.5
703.5 ft²
