What is the surface area of this square pyramid

28

Step-by-step explanation:

33 square feet

Step-by-step explanation:

Surface area is the sum of the areas of all of the faces.

Area of the triangle:

4*3/2= 6

Since there are four triangles, we need to multiply that by four.

6*4=24

Area of the base (the square):

3*3=9

Now we need to add those together.

24+9=33

Thus, the surface area is 33 square feet.

Hope this helped!

john has 55 candy left.