2n. 3 in.
3 in.
Surface Area = [?] in.2
please help literally nobody can seem to get this

9514 1404 393

  21 in²

Step-by-step explanation:

The net consists of a square and 4 triangles. The relevant dimensions of each are given, so the appropriate area formulas can be used.

Area of one triangle:

  A = 1/2bh

  A = 1/2(3 in)(2 in) = 3 in²

Area of the square:

  A = s²

  A = (3 in)² = 9 in²

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Total net area (surface area of the pyramid):

  square area + 4 × triangle area

  9 in² + 4 × 3 in² = 21 in² . . . . surface area