Answer:
84m
Step-by-step explanation:
First split the shape up. There can be rectangle and then a triangle at the top.
Find the area of the rectangle first:
12 * 4 = 48.
Rectangle area 48m
Now find the area of the triangle at the top:
The base of the triangle is 12. The height would be 10-4 which gives you the height of 6. So, 12 * 6 divided by 2 would give you the area of the triangle.
12 * 6 = 72, 72/2 = 36
Triangle Area 36m
Now add the two areas up: 48 + 36 = 84
So the area of the polygon is 84m
