Area of the shape is 20 ft²
Explanation:
Part A:
The longest length = missing side + 1ft + 1ft
The longest length = 8, let missing side = x
8 = x + 1 + 1
8 = x + 2
8 - 2 = x
x = 6
Part B:
Area of the shape = Sum of Areas of two rectangle
Area of the top rectangle = 2ft (6 ft) = 12t²
Area of the bottom rectangle = 8(1) = 8ft²
The area of the shape = Area of the top rectangle + Area of the bottom rectangle
The area of the shape = 12ft + 8 ft
Area of the shape is 20 ft²
