Question

Plz help I need to understand and I don’t

Answer 1

B.
`108 \: {in}^(2)`

Explanation:

Total surface area of the square pyramid

= 4 times the area of one triangle + Area of square

`= 4 * (1)/(2) * 6 * 6 + {6}^(2) \\ \\ = 72 + 36 \\ \\ = 108 \: {in}^(2)`