The area is 1.08. Hope this helped :p
Hello!
It appears all of these triangles are congruent. We can use the triangle formula, but as there are four triangles, we replace the 1/2 with 2.
1.2(0.9)=1.08
1.08(2)=2.16
Therefore, our answer is C) 2.16 m²
I hope this helps!
