To find the area of a triangle, we can use the formula:
Area = base * height / 2.
In this case, the base of the triangle is the sum of the two bottom numbers, 4m and 3m, which gives us a base of 7m.
The height of the triangle is the distance between the base and the top vertex. In this case, the left side of the triangle is 5.7m, the right side is 5m, and the middle is 4m. To find the height, we need to subtract the length of the middle side from the longer side. Since the left side is longer, we subtract 4m from 5.7m, giving us a height of 1.7m.
Now we can substitute the values into the formula:
Area = base * height / 2
Area = 7m * 1.7m / 2
Area = 11.9m² / 2
Area = 5.95m²
Therefore, the area of the triangle is 5.95 square meters.