please help me I need the answer asap

Answer:
h^2+1/2 bh = 80
Step-by-step explanation:
Area of a square= l x w --> h x h or h^2
Area of a triangle= 1/2 base x height --> b is the base h is the height --> 1/2 bh
Since both of them added together equals 80, the answer is h^2+1/2 bh = 80