Answer:
140 ft²
Explanation:
First, we divide the figure into the two visible polygons. The first being a right angled triangle and the second being a rectangle.
Area of a right angled triangle = 0·5 × b × h
= 0·5 × 6 × 4 I've included a picture to show where the 6 and 4 came from
= 12 ft²
Area of a rectangle = l × w
= 16 × 8
= 128 ft²
Add the two areas to get the area of the figure
= 128 + 12
∴ the area of the figure is 140 ft²