You have a triangle with the measures:
You have the next formula to find the area:
[tex]A=\frac{b\cdot h}{2}[/tex]
In the tringle you can take the 8 like the base (b) and the blue line as the hight.
Then
b=8
h=7
[tex]A=\frac{8\cdot7}{2}=\frac{56}{2}=28[/tex]The area is 28 square meters
