Question

The figure below is a net for a square pyramid.

Answer 1

Answer:

$\large\text{The surface area of the square pyramid} =237.6\ in^{2}$

Step-by-step explanation:

Formula ====================================

The total surface area of a square pyramid = the base area + the lateral surface area __________________________________

 The lateral surface area = the sum of the areas of the four triangular faces

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the base area = 9² = 81 in²

$\text{The lateral surface area} =4\times \frac{9\times 8.7}{2} =156.6\ in^2$

$\Longrightarrow \text{The total surface area} =156.6+81=237.6\ in^2$