Answer:

Explanation:
Let's find the area find dividing the parks in two triangles.
See Attachment:
In Lower triangle: ABE
Perpendicular = AE = 11m
Base = AB = 60 m
Hypotenuse = BE = 61 m
Since we have,

Substituting value


In Upper Triangle: ABC
Base = AB = 60 m
Height = CD = 18 m
We have,

Substituting value


Now,
Area of park = Area of Lower triangle ABE + Area Upper Triangle ABC

Therefore,
