Answer:
138,920 m²
Explanation:
A square pyramid has 1 square base and 4 lateral triangular faces.
Area of square pyramid is given as BASE Area (BA) + ½*Perimeter of Base (P) × Slant height
Area of pyramid =

Where,
b = base length = 230 m
l = slant height = 187 m (height of the triangular sides)
Surface area =




Surface area of the pyramid = 138,920 m²