SA of a pyramid: 1/2ph + B p = perimeter of base h = slant height B = area of base
Perimeter of base: The pyramid has a square base, so take a side of the base and multiply it by 4 sides to find the perimeter of the base. (2)(4) = 8 cm
Slant height: The diagram shows that the slant height of the pyramid is 4 cm. Area of base: Since the pyramid has a square base, square one side of the base to find the area of the pyramid. 2cm² = 4 cm²
Now plug in the perimeter, slant height, and area of the base into the formula for SA of a pyramid.