A square pyramid having a base perimeter of 25cm and a hight of 6cm

Do you want to know the surface area of the triangle or the perimeter of the triangle?

Step-by-step explanation:

If you are looking for the Surface area, plug your numbers in this formula: SA = (p x h) / (2) + B where SA is the surface area of the pyramid, p is the perimeter of the base, h is the slant height of the pyramid, and B is the area of the base.