Answer:
The Area of the polygon is 36m².
Explanation:
Area of the polygon= Area of rectangle + Area of triangle
Diagram
______________
l. l \
3m |. 3m l. \
|. l. /
|_____________ l /
11m. 2m
( 13m).
Area of rectangle= Length × Width
= 11m × 3m
= 33m²
Area of triangle= ½ × base × height
To find the height= 13m - 11m = 2m
= ½ × 3 × 2
= ½ × 6
= 3m²
Area of the polygon= 33m² + 3m² = 36m²