The net square pyramid and its given dimension as shown has a total surface area of 1040 ft².
How to calculate surface area of a square pyramid
Surface area of a square pyramid = A + 1 / 2 ps
where
- A = area of the base
- p = perimeter of base
- s = slant height
Therefore,
A = l²
where
A = 20² = 400 ft²
p = 4l = 4 × 20 = 80 ft
s = 16 ft
Therefore,
Surface area = 400 + 1 / 2 × 80 × 16
Surface area = 400 + 1280 / 2
Surface area = 400 + 640
Surface area = 1040 ft²
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